2011

2011

Record 1 of 209

Title: Broadband near-infrared emission in Tm<SUP>3+</SUP>-Dy<SUP>3+</SUP> codoped amorphous chalcohalide films fabricated by pulsed laser deposition

Author(s): Yang, SL (Yang, Senlin); Wang, XF (Wang, Xuefeng); Guo, HT (Guo, Haitao); Dong, GP (Dong, Guoping); Peng, B (Peng, Bo); Qiu, JR (Qiu, Jianrong); Zhang, R (Zhang, Rong); Shi, Y (Shi, Yi)

Source: OPTICS EXPRESS  Volume: 19  Issue: 27  Pages: 26529-26535  DOI: 10.1364/OE.19.026529  Published: DEC 19 2011  

Abstract: Structural and near-infrared (NIR) emission properties were investigated in the Tm3+-Dy3+ codoped Ge-Ga-based amorphous chalcohalide films fabricated by pulsed laser deposition. The homogeneous films illustrated similar random network to the glass target according to the measurements of X-ray diffraction, X-ray photoelectron spectroscopy, and Raman spectroscopy. An 808 nm laser diode pumping generated a superbroadband NIR emission ranging from 1050 to 1570 nm and the other intense broadband NIR emission centered at similar to 1800 nm, which was attributed to the efficient energy transfer from Tm3+ to Dy3+ ions. This was further verified by the broad-range excitation measurements near the Urbach optical-absorption edge involved defect states. The results shed light on the potential highly integrated planar optical device applications of the codoped amorphous chalcohalide films. (C) 2011 Optical Society of America

Accession Number: WOS:000301151500067

PubMed ID: 22274237

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

SHI, Yi 

IXD-7826-2023 

 

Dong, Guoping 

F-8359-2012 

 

Wang, Xuefeng 

V-1018-2017 

 

Qiu, Jiarui 

JTS-6108-2023 

0009-0006-9596-2326 

Yang, Senlin 

GRO-2659-2022 

 

Qiu, Jianrong 

C-7204-2011 

 

 

ISSN: 1094-4087

 


 

Record 2 of 209

Title: Reflective point-diffraction microscopic interferometer with long-term stability

Author(s): Guo, RL (Guo, Rongli); Yao, BL (Yao, Baoli); Gao, P (Gao, Peng); Min, JW (Min, Junwei); Zheng, JJ (Zheng, Juanjuan); Ye, T (Ye, Tong)

Source: CHINESE OPTICS LETTERS  Volume: 9  Issue: 12  Article Number: 120002  DOI: 10.3788/COL201109.120002  Published: DEC 10 2011  

Abstract: An on-axis phase-shifting reflective point-diffraction microscopic interferometer for quantitative phase microscopy based on Michelson architecture is proposed. A cube beamsplitter splits the object wave spectrum into two copies within two arms. Reference wave is rebuilt in one arm by low-pass filtering on the object wave frequency spectrum with a pinhole-mask mirror, and interferes with the object wave from the other arm. Polarization phase-shifting is performed and phase imaging on microscale specimens is implemented. The experimental results demonstrate that the proposed scheme has the advantage of long-term stability due to its quasi common-path geometry with full use of laser energy.

Accession Number: WOS:000298341700003

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

min, junwei 

HDO-7763-2022 

0000-0001-7931-9361 

Yao, Baoli 

AAB-4606-2021 

 

Ye, Tong 

ABG-8560-2021 

0000-0003-1017-6969 

Ye, Tong 

A-8251-2010 

0000-0003-1017-6969 

Gao, Peng 

 

0000-0002-5354-3944 

 

ISSN: 1671-7694

 


 

Record 3 of 209

Title: Two-dimensional sub-half-wavelength atom localization via controlled spontaneous emission

Author(s): Wan, RG (Wan, Ren-Gang); Zhang, TY (Zhang, Tong-Yi)

Source: OPTICS EXPRESS  Volume: 19  Issue: 25  Pages: 25823-25832  DOI: 10.1364/OE.19.025823  Published: DEC 5 2011  

Abstract: We propose a scheme for two-dimensional (2D) atom localization based on the controlled spontaneous emission, in which the atom interacts with two orthogonal standing-wave fields. Due to the spatially dependent atom-field interaction, the position probability distribution of the atom can be directly determined by measuring the resulting spontaneously emission spectrum. The phase sensitive property of the atomic system leads to quenching of the spontaneous emission in some regions of the standing-waves, which significantly reduces the uncertainty in the position measurement of the atom. We find that the frequency measurement of the emitted light localizes the atom in half-wavelength domain. Especially the probability of finding the atom at a particular position can reach 100% when a photon with certain frequency is detected. By increasing the Rabi frequencies of the driving fields, such 2D sub-half-wavelength atom localization can acquire high spatial resolution. (C) 2011 Optical Society of America

Accession Number: WOS:000297702400099

PubMed ID: 22273975

ISSN: 1094-4087

 


 

Record 4 of 209

Title: Exploiting Local Coherent Patterns for Unsupervised Feature Ranking

Author(s): Huang, QH (Huang, Qinghua); Tao, DC (Tao, Dacheng); Li, XL (Li, Xuelong); Jin, LW (Jin, Lianwen); Wei, G (Wei, Gang)

Source: IEEE TRANSACTIONS ON SYSTEMS MAN AND CYBERNETICS PART B-CYBERNETICS  Volume: 41  Issue: 6  Pages: 1471-1482  DOI: 10.1109/TSMCB.2011.2151256  Published: DEC 2011  

Abstract: Prior to pattern recognition, feature selection is often used to identify relevant features and discard irrelevant ones for obtaining improved analysis results. In this paper, we aim to develop an unsupervised feature ranking algorithm that evaluates features using discovered local coherent patterns, which are known as biclusters. The biclusters (viewed as submatrices) are discovered from a data matrix. These submatrices are used for scoring relevant features from two aspects, i.e., the interdependence of features and the separability of instances. The features are thereby ranked with respect to their accumulated scores from the total discovered biclusters before the pattern classification. Experimental results show that this proposed method can yield comparable or even better performance in comparison with the well-known Fisher score, Laplacian score, and variance score using three UCI data sets, well improve the results of gene expression data analysis using gene ontology annotation, and finally demonstrate its advantage of unsupervised feature ranking for high-dimensional data.

Accession Number: WOS:000297342100003

PubMed ID: 21690016

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Li, Xuelong 

ABF-3381-2020 

 

Huang, Qinghua 

L-8708-2019 

0000-0003-1080-6940 

li, xiang 

GWM-6319-2022 

 

Li, Xuelong 

Z-3785-2019 

 

Tao, Dacheng 

A-5449-2012 

0000-0001-7225-5449 

Li, Xuelong 

 

0000-0002-0019-4197 

 

ISSN: 1083-4419

eISSN: 1941-0492

 


 

Record 5 of 209

Title: Enhanced Biologically Inspired Model for Object Recognition

Author(s): Huang, YZ (Huang, Yongzhen); Huang, KQ (Huang, Kaiqi); Tao, DC (Tao, Dacheng); Tan, TN (Tan, Tieniu); Li, XL (Li, Xuelong)

Source: IEEE TRANSACTIONS ON SYSTEMS MAN AND CYBERNETICS PART B-CYBERNETICS  Volume: 41  Issue: 6  Pages: 1668-1680  DOI: 10.1109/TSMCB.2011.2158418  Published: DEC 2011  

Abstract: The biologically inspired model (BIM) proposed by Serre et al. presents a promising solution to object categorization. It emulates the process of object recognition in primates' visual cortex by constructing a set of scale- and position-tolerant features whose properties are similar to those of the cells along the ventral stream of visual cortex. However, BIM has potential to be further improved in two aspects: mismatch by dense input and randomly feature selection due to the feedforward framework. To solve or alleviate these limitations, we develop an enhanced BIM (EBIM) in terms of the following two aspects: 1) removing uninformative inputs by imposing sparsity constraints, 2) apply a feedback loop to middle level feature selection. Each aspect is motivated by relevant psychophysical research findings. To show the effectiveness of the EBIM, we apply it to object categorization and conduct empirical studies on four computer vision data sets. Experimental results demonstrate that the EBIM outperforms the BIM and is comparable to state-of-the-art approaches in terms of accuracy. Moreover, the new system is about 20 times faster than the BIM.

Accession Number: WOS:000297342100018

PubMed ID: 21768049

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Li, Xuelong 

Z-3785-2019 

 

li, xiang 

GWM-6319-2022 

 

Tao, Dacheng 

A-5449-2012 

0000-0001-7225-5449 

Li, Xuelong 

ABF-3381-2020 

 

Wang, Yunlong 

 

0000-0002-3535-308X 

Li, Xuelong 

 

0000-0002-0019-4197 

 

ISSN: 1083-4419

eISSN: 1941-0492

 


 

Record 6 of 209

Title: Low-repetition-rate ytterbium-doped fiber laser based on a CFBG from large anomalous to large normal dispersion

Author(s): Li, XH (Li, X. H.); Wang, YS (Wang, Y. S.); Zhang, W (Zhang, W.); Zhao, W (Zhao, W.); Hu, XH (Hu, X. H.); Yang, Z (Yang, Z.); Gao, CX (Gao, C. X.); Wang, XL (Wang, X. L.); Liu, XL (Liu, X. L.); Shen, DY (Shen, D. Y.); Li, C (Li, C.)

Source: LASER PHYSICS  Volume: 21  Issue: 12  Pages: 2112-2117  DOI: 10.1134/S1054660X11210110  Published: DEC 2011  

Abstract: We report on the long-cavity ytterbium-doped fiber laser based on a chirped fiber Bragg grating (CFBG) to control the dispersion in the cavity. The proposed fiber lasers operating in large anomalous dispersion and large normal dispersion are intensively studied in this paper. To the best of our knowledge, this is the first time for us to give the dispersion map over such a wide range. The experimental results show that, for large anomalous dispersion, the state of soliton rains can be obtained. Nanosecond pulse is obtained in the large normal dispersion regime with spectral filter which is different from the operation mode without spectral filter. This study may pave the way to best apply the fiber laser in many fields.

Accession Number: WOS:000297733300023

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

zhang, yu 

HNS-5948-2023 

 

yuan, lin 

JDW-7387-2023 

 

Li, Xiaohui 

J-9580-2012 

0000-0002-5600-3820 

 

ISSN: 1054-660X

eISSN: 1555-6611

 


 

Record 7 of 209

Title: High power tunable picosecond green laser pulse generation by frequency doubling of an Yb-doped fiber power amplifier seeded by a gain switch laser diode

Author(s): Liu, HJ (Liu, H. J.); Li, XF (Li, X. F.)

Source: LASER PHYSICS  Volume: 21  Issue: 12  Pages: 2118-2121  DOI: 10.1134/S1054660X11210146  Published: DEC 2011  

Abstract: A compact tunable high power picosecond green laser pulse source based on frequency doubling of an Yb-doped fiber amplifier seeded by a gain switch laser diode has been developed. The fiber amplifier generates the picosecond infrared pulses with average power of 10.3 W, repetition rate of 1 MHz, pulse duration of 150 ps, and tunable range of 20 nm around 1064 nm. For underwater use, the tunable output infrared pulses are frequency doubled into picosecond green laser pulses, which can be tuned from 527 to 537 nm with average power of more than 1.1 W, corresponding to an overall conversion efficiency of 10.7% by a BBO nonlinear crystal. This kind of laser source will have potential application for underwater optical communication.

Accession Number: WOS:000297733300024

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Liu, Hongjun 

D-2541-2016 

 

 

ISSN: 1054-660X

eISSN: 1555-6611

 


 

Record 8 of 209

Title: Shadow Detection in Remotely Sensed Images Based on Self-Adaptive Feature Selection

Author(s): Liu, JH (Liu, Jiahang); Fang, T (Fang, Tao); Li, DR (Li, Deren)

Source: IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING  Volume: 49  Issue: 12  Pages: 5092-5103  DOI: 10.1109/TGRS.2011.2158221  Part: 2  Published: DEC 2011  

Abstract: Shadows in remotely sensed images create difficulties in many applications; thus, they should be effectively detected prior to further processing. This paper presents a novel semiautomatic shadow detection method that meets the requirements of both high accuracy and wide practicability in remote sensing applications. The proposed method uses only the properties derived from the shadow samples to dynamically generate a feature space and calculate decision parameters; then, it employs a series of transformations to separate shadow and nonshadow regions. The proposed method can detect shadows from both color and gray images. If the chromatic properties of color images do not agree with the defined rules through the shadow samples, then the shadow detection process will automatically reduce to the process for gray images. As the shadow samples are manually selected from the input image by the user, the derived parameters conform well to the characteristics of the input image. Experiments and comparisons indicate that the proposed self-adaptive feature selection algorithm is accurate, effective, and widely applicable to shadow detection in practical applications.

Accession Number: WOS:000297282300012

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

fang, tao 

IQU-3074-2023 

 

Liu, Jiahang 

 

0000-0001-5177-8216 

 

ISSN: 0196-2892

eISSN: 1558-0644

 


 

Record 9 of 209

Title: Design of Topas microstructured fiber with ultra-flattened chromatic dispersion and high birefringence

Author(s): Wang, DD (Wang, Doudou); Wang, LL (Wang, Lili)

Source: OPTICS COMMUNICATIONS  Volume: 284  Issue: 24  Pages: 5568-5571  DOI: 10.1016/j.optcom.2011.08.040  Published: DEC 1 2011  

Abstract: A microstructured polymer optical fiber (mPOF) with both ultra-flattened near-zero chromatic dispersion and high birefringence based on Topas cyclic olefin copolymer is designed. Three rings of uniform elliptical air holes are arranged in triangular lattice in the cladding and an extra small defected hole is introduced in the fiber core. Guided modes, dispersion, birefringence and mode confinement properties of the designed mPOF are investigated by using the full-vector finite element method. Dispersion values between +/- 0.5 ps/km/nm over the wavelength 1.1-1.7 mu m and high birefringence of the order of 10(-3) are obtained for the optimized fiber structure. Low confinement losses and small effective mode area are obtained at the same time. The relatively simple architecture of the proposed Topas mPOF can be fabricated by our extrusion-stretching techniques. (C) 2011 Elsevier B.V. All rights reserved.

Accession Number: WOS:000296687100010

ISSN: 0030-4018

 


 

Record 10 of 209

Title: Growth of short-period InAs/GaSb superlattices for infrared sensing

Author(s): Wang, T (Wang Tao); Yang, J (Yang Jin); Yin, F (Yin Fei); Wang, JW (Wang Jing-Wei); Hu, YN (Hu Ya-Nan); Zhang, LC (Zhang Li-Chen); Yin, JZ (Yin Jing-Zhi)

Source: JOURNAL OF INFRARED AND MILLIMETER WAVES  Volume: 30  Issue: 6  Pages: 511-+  DOI: 10.3724/SP.J.1010.2011.00511  Published: DEC 2011  

Abstract: The InAs/GaSb superlattice were prepared by metal organic chemical vapor deposition (MOCVD) on GaSb substrate. The optimized thickness and the various growth parameters were explored as well as the importance of source flux control. The photoluminescence (PL) spectra, x-ray diffraction data (XRD) and the surface topography map showed that the superlattice can response to incident light with long wavelength of 10 mu m, and has good surface morphology and epitaxial layer quality.

Accession Number: WOS:000298550700008

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

YU, Wei 

HTP-9667-2023 

 

 

ISSN: 1001-9014

 


 

Record 11 of 209

Title: Spectrum reshaping of amplified pulse in silicon nanowaveguide

Author(s): Wu, JW (Wu, Jian-Wei); Sarma, AK (Sarma, Amarendra K.); Zhang, XP (Zhang, Xu-Ping)

Source: OPTICS COMMUNICATIONS  Volume: 284  Issue: 24  Pages: 5641-5644  DOI: 10.1016/j.optcom.2011.08.010  Published: DEC 1 2011  

Abstract: A device consisting of a cascaded semiconductor optical amplifier (SOA) and silicon on insulator (SOI) optical waveguide is presented to amplify and reshape the frequency spectrum of optical pulses in the picoseconds time duration. Numerical simulations show that the output spectrum of the amplified pulse by SOA can be effectively reshaped by utilizing the SOI waveguide. The length of the SOI waveguide may be judiciously adjusted to significantly reduce the frequency chirp of the output pulse from the SOA resulting in reshaping of the output spectrum. We find that the property of pulse spectrum is sensitive to the input pulse power and its temporal width. (C) 2011 Elsevier B.V. All rights reserved.

Accession Number: WOS:000296687100020

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Sui, Yanwei 

AAH-9928-2021 

 

Wu, Jian 

AAU-5221-2020 

0000-0001-9933-7364 

zhang, xu 

GYE-3558-2022 

 

zhang, xu 

GRX-9733-2022 

 

pang, li 

JVY-9355-2024 

 

Sarma, Amarendra Kumar 

 

0000-0003-4846-0893 

Wu, Jian 

AAU-5221-2020 

0000-0002-3394-1507 

 

ISSN: 0030-4018

 


 

Record 12 of 209

Title: Impact of dispersion profiles of silicon waveguides on optical parametric amplification in the femtosecond regime

Author(s): Wang, ZL (Wang, Zhaolu); Liu, HJ (Liu, Hongjun); Huang, N (Huang, Nan); Sun, QB (Sun, Qibing); Wen, J (Wen, Jin)

Source: OPTICS EXPRESS  Volume: 19  Issue: 24  Pages: 24730-24737  DOI: 10.1364/OE.19.024730  Published: NOV 21 2011  

Abstract: The impact of dispersion profiles of silicon waveguides on femtosecond optical parametric amplification (OPA) is theoretically investigated. It is found that flat quasi-phase-matching, smooth temporal profiles and separable spectra for 200 fs pulses can be obtained by tailoring the cross-section of silicon rib waveguide. We achieve on-chip parametric gain as high as 26.8 dB and idler conversion gain of 25.6 dB for a low pump peak power over a flat bandwidth of 400 nm in a 10-mm-long dispersion engineered silicon waveguide. Our on-chip OPA can find important potential applications in highly integrated optical circuits for all-optical ultrafast signal processing. (C) 2011 Optical Society of America

Accession Number: WOS:000298322000112

PubMed ID: 22109500

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Huang, Nan 

IYI-9977-2023 

 

Liu, Hongjun 

D-2541-2016 

 

lin, yuan 

JXL-9592-2024 

 

 

ISSN: 1094-4087

 


 

Record 13 of 209

Title: Interaction and motion of solitons in passively- mode-locked fiber lasers

Author(s): Liu, XM (Liu, Xueming)

Source: PHYSICAL REVIEW A  Volume: 84  Issue: 5  Article Number: 053828  DOI: 10.1103/PhysRevA.84.053828  Published: NOV 14 2011  

Abstract: Interaction and motion of multiple solitons in passively-mode-locked (PML) fiber lasers are investigated numerically. Three types of relative motions of two solitons are found in PML fiber lasers. The numerical results show that the relative motion of solitons attributes to the phase shift, which corresponds to the instantaneous frequency at pulse peak to be nonzero. Different from the classical dynamics of billiard balls, the interaction of solitons is similar to the Feynman diagram which is a pictorial way to represent the interaction of particles. After solitons interact with one another, their shapes do not change, but their phases shift and relative motions change. The theoretical results demonstrate that the separation of neighboring solitons in the laser cavity is about several hundred picoseconds to several nanoseconds. The theoretical predictions are in good agreement with the experimental results.

Accession Number: WOS:000297094500022

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Wu, Jiale 

JQV-3750-2023 

 

 

ISSN: 1050-2947

eISSN: 1094-1622

 


 

Record 14 of 209

Title: Broadband terahertz spectroscopy

Author(s): Fan, WH (Fan, Wenhui)

Source: CHINESE OPTICS LETTERS  Volume: 9  Issue: 11  Special Issue: SI  Article Number: 110008  DOI: 10.3788/COL201109.110008  Published: NOV 10 2011  

Abstract: An overview of the major techniques to generate and detect THz radiation so far, especially the major approaches to generate and detect coherent ultra-short THz pulses using ultra-short pulsed laser, has been presented. And also, this paper, in particularly, focuses on broadband THz spectroscopy and addresses on a number of issues relevant to generation and detection of broadband pulsed THz radiation as well as broadband time-domain THz spectroscopy (THz-TDS) with the help of ultra-short pulsed laser. The time-domain waveforms of coherent ultra-short THz pulses from photoconductive antenna excited by femtosecond laser with different pulse durations and their corresponding Fourier-transformed spectra have been obtained via the numerical simulation of ultrafast dynamics between femtosecond laser pulse and photoconductive material. The origins of fringes modulated on the top of broadband amplitude spectrum, which is measured by electric-optic detector based on thin nonlinear crystal and extracted by fast Fourier transformation, have been analyzed and the major solutions to get rid of these fringes are discussed.

Accession Number: WOS:000296894000008

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Fan, Wen-Hui 

M-1060-2018 

0000-0003-2554-6723 

 

ISSN: 1671-7694

 


 

Record 15 of 209

Title: Non-absorption grating approach for X-ray phase contrast imaging

Author(s): Du, Y (Du, Yang); Liu, X (Liu, Xin); Lei, YH (Lei, Yaohu); Guo, JC (Guo, Jinchuan); Niu, HB (Niu, Hanben)

Source: OPTICS EXPRESS  Volume: 19  Issue: 23  Pages: 22669-22674  DOI: 10.1364/OE.19.022669  Published: NOV 7 2011  

Abstract: we demonstrate a non-absorption grating approach for X-ray phase contrast imaging based-on grating interferometry. This technique overcomes the limitations imposed by absorption gratings, provides another choice for X-ray phase contrast imaging and potentially improves the image quality for higher X-ray photon energies. We constructed the key devices, established the system and obtained phase contrast images with a field of view larger than 5 centimeters, which is the limitation imposed by the size of our current CCD detector. This method has no need for absorption gratings, which represents a significant development for future promising applications in medicine and industry. (C)2011 Optical Society of America

Accession Number: WOS:000296904700050

PubMed ID: 22109147

ISSN: 1094-4087

 


 

Record 16 of 209

Title: InAs/GaSb superlattices grown by LP-MOCVD for 10 μm wavelength infrared range

Author(s): Chang, YC (Chang, Yuchun); Wang, T (Wang, Tao); Yin, F (Yin, Fei); Wang, JW (Wang, Jingwei); Song, ZY (Song, Zhenyu); Wang, YD (Wang, Yiding); Yin, JZ (Yin, Jingzhi)

Source: INFRARED PHYSICS & TECHNOLOGY  Volume: 54  Issue: 6  Pages: 478-481  DOI: 10.1016/j.infrared.2011.07.009  Published: NOV 2011  

Abstract: A type-II InAs/GaSb superlattice (SL) was grown on Te-doped (1 0 0) GaSb substrate by low pressure metal organic chemical vapor deposition (LP-MOCVD). The samples were obtained at different growth temperatures and with different interface layers. By introducing an InAsSb interface layer between InAs and GaSb, a good surface morphology of the superlattice was achieved when the sample growth temperature was around 500-520 degrees C. The photoluminescence (PL) peak wavelength of the sample was 10.7 mu m at 77 K, with FWHM of similar to 30 meV. (C) 2011 Elsevier B.V. All rights reserved.

Accession Number: WOS:000297183100006

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Song, Zhenyu 

IZQ-5625-2023 

 

YU, Wei 

HTP-9667-2023 

 

 

ISSN: 1350-4495

eISSN: 1879-0275

 


 

Record 17 of 209

Title: Phase-shifting Zernike phase contrast microscopy for quantitative phase measurement

Author(s): Gao, P (Gao, Peng); Yao, BL (Yao, Baoli); Harder, I (Harder, Irina); Lindlein, N (Lindlein, Norbert); Torcal-Milla, FJ (Torcal-Milla, Francisco Jose)

Source: OPTICS LETTERS  Volume: 36  Issue: 21  Pages: 4305-4307  DOI: 10.1364/OL.36.004305  Published: NOV 1 2011  

Abstract: Zernike phase contrast microscopy is extended and combined with a phase-shifting mechanism to perform quantitative phase measurements of microscopic objects. Dozens of discrete point light sources on a ring are constructed for illumination. For each point light source, three different levels of point-like phase steps are designed, which are alternatively located along a ring on a silica plate to perform phase retardation on the undiffracted (dc) component of the object waves. These three levels of the phase steps are respectively selected by rotating the silica plate. Thus, quantitative evaluation of phase specimens can be performed via phase-shifting mechanism. The proposed method has low "halo" and "shade-off" effects, low coherent noise level, and high lateral resolution due to the improved illumination scheme. (C) 2011 Optical Society of America

Accession Number: WOS:000296734700061

PubMed ID: 22048399

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Torcal-Milla, Francisco Jose 

N-3963-2014 

0000-0003-3178-5253 

Lindlein, Norbert 

C-7825-2013 

 

Torcal-Milla, Francisco Jose 

AAL-5408-2020 

 

Yao, Baoli 

AAB-4606-2021 

 

 

ISSN: 0146-9592

 


 

Record 18 of 209

Title: Active optical system for any field angle zoom

Author(s): Hu, SL (Hu, Shaolei); Zhao, X (Zhao, Xin); Dong, WH (Dong, Weihui); Xie, YJ (Xie, Yongjun)

Source: OPTICAL ENGINEERING  Volume: 50  Issue: 11  Article Number: 113001  DOI: 10.1117/1.3654181  Published: NOV 2011  

Abstract: We have theoretically proposed a new type of active optical zoom system. It can change the magnification of an imaging system at any field angle, namely, it can change the effective focal length at a limited region of interest and simultaneously maintain high resolution. It is comprised of two static aspheric mirrors and two deformable mirrors; furthermore, by changing the curvature of mirrors the focal length can be adjusted from -399 to -558.6 mm. The system reduces the bandwidth of data transmission and may find potential applications in high speed photography. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.3654181]

Accession Number: WOS:000296971600015

ISSN: 0091-3286

 


 

Record 19 of 209

Title: Wideband slow light with ultralow dispersion in a W1 photonic crystal waveguide

Author(s): Liang, J (Liang, Jian); Ren, LY (Ren, Li-Yong); Yun, MJ (Yun, Mao-Jin); Wang, XJ (Wang, Xing-Jun)

Source: APPLIED OPTICS  Volume: 50  Issue: 31  Pages: G98-G103  DOI: 10.1364/AO.50.000G98  Published: NOV 1 2011  

Abstract: A dispersion tailoring scheme for obtaining slow light in a silicon-on-insulator W1-type photonic crystal waveguide, novel to our knowledge, is proposed in this paper. It is shown that, by simply shifting the first two rows of air holes adjacent to the waveguide to specific directions, slow light with large group-index, wideband, and low group-velocity dispersion can be realized. Defining a criterion of restricting the group-index variation within a +/- 0: 8% range as a flattened region, we obtain the ultraflat slow light with bandwidths over 5.0, 4.0, 2.5, and 1.0nm when keeping the group index at 38.0, 48.8, 65.2, and 100.4, respectively. Numerical simulations are performed utilizing the three-dimensional (3D) plane-wave expansion method and the 3D finite-difference time-domain method. (C) 2011 Optical Society of America

Accession Number: WOS:000297162700018

PubMed ID: 22086056

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

ren, li yong 

F-5518-2014 

0000-0002-7547-7511 

 

ISSN: 1559-128X

eISSN: 2155-3165

 


 

Record 20 of 209

Title: Multi-wavelength ultraviolet terawatt-order CPA system

Author(s): Ling, WJ (Ling Wei-Jun); Zhang, SG (Zhang Shao-Gang); Li, K (Li Ke); Zhang, MX (Zhang Ming-Xia); Wang, YS (Wang Yi-Shan); Zhao, W (Zhao Wei); Wang, ZH (Wang Zhao-Hua); Wei, ZY (Wei Zhi-Yi)

Source: ACTA PHYSICA SINICA  Volume: 60  Issue: 11  Article Number: 114215  DOI: 10.7498/aps.60.114215  Published: NOV 2011  

Abstract: We set up a multi-wavelength ultraviolet terawatt-order chirped pulse amplification (CPA) system according to the CPA technology and the frequency conversion technology. The system offers 1Hz, 5Hz and 10Hz high energy ultraviolet pulses by precise time synchronization among 5 repeat frequencies. The RMS of output energy fluctuation rate of CPA is less than 2% with using a pre-amplified system of energy fluctuation rate less than 0.3% RMS and a time synchronizer with time jitter less than 3 ns. The multi-wavelength high energy ultraviolet pulses with 64 mJ/400 nm,16 mJ/267 nm and 5 mJ/205 nm are obtained, and their corresponding peak powers reach the terawatt level.

Accession Number: WOS:000298442100059

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Wang, Zhaohua 

JJE-6996-2023 

 

wang, wenxin 

JOZ-3291-2023 

 

 

ISSN: 1000-3290

 


 

Record 21 of 209

Title: Helium-Implanted Optical Planar Waveguides in Nd<SUP>3+</SUP>-Doped Phosphate Glass

Author(s): Liu, CX (Liu Chun-Xiao); Liu, T (Liu Tao); Liu, XH (Liu Xiu-Hong); Wei, W (Wei Wei); Peng, B (Peng Bo)

Source: CHINESE PHYSICS LETTERS  Volume: 28  Issue: 11  Article Number: 114205  DOI: 10.1088/0256-307X/28/11/114205  Published: NOV 2011  

Abstract: We report the fabrication of planar waveguides in Nd3+-doped phosphate glass by helium ion implantation. The guiding properties of the waveguide are evaluated by a prism coupler and end-face coupling methods. The refractive index profile of the waveguide is reconstructed by using the intensity calculation method. Absorption and fluorescence investigations reveal that helium ion implantation causes only slight changes in the optical properties, suggesting the possible application of the fabricated structures as waveguide lasers.

Accession Number: WOS:000297284600032

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Liu, Xiuhong 

GLQ-7611-2022 

 

Liu, Xiuhong 

 

0000-0001-5834-1746 

 

ISSN: 0256-307X

eISSN: 1741-3540

 


 

Record 22 of 209

Title: Generation of 10-GHz Duty-Cycle Tunable Square Optical Pulse in an SOA-Based Mode-Locked Fiber Laser

Author(s): Luo, D (Luo, D.); Yan, SY (Yan, S. Y.); Xie, XP (Xie, X. P.); Zhao, W (Zhao, W.)

Source: LASER PHYSICS  Volume: 21  Issue: 11  Pages: 1909-1913  DOI: 10.1134/S1054660X11190224  Published: NOV 2011  

Abstract: We demonstrate the generation of 10-GHz optical square pulses by injecting a picosecond pulse train into an SOA-based mode-locked fiber laser. The novel scheme exploits nonlinear effects and gain saturation phenomenon in the semiconductor optical amplifier (SOA). This technique uses gain-compression dynamics between the input pulses and the generated ones in gain-saturated SOA to form square pulses. The center wavelength of the generated optical square pulse can be tuned from 1530 to 1570 nm by adjusting the center wavelength of the optical band pass filter (OBPF) in the SOA-based mode-locked fiber ring laser. The duty cycle of the output pulse can be tuned from 12.7 to 88.4%, which strongly depends on the input power and intra-cavity power.

Accession Number: WOS:000297732800015

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

zhao, wei 

IQS-1144-2023 

 

Yan, Shuangyi 

H-7233-2019 

0000-0002-5021-2840 

Zhang, wen 

ITT-1192-2023 

 

 

ISSN: 1054-660X

eISSN: 1555-6611

 


 

Record 23 of 209

Title: Dispersion-Insensitive Low-Coherent Pulses Emerging from Nonlinear Polarization Switching

Author(s): Mao, D (Mao, D.); Liu, XM (Liu, X. M.); Lu, H (Lu, H.); Wang, LR (Wang, L. R.); Duan, LN (Duan, L. N.)

Source: LASER PHYSICS  Volume: 21  Issue: 11  Pages: 1903-1908  DOI: 10.1134/S1054660X11190236  Published: NOV 2011  

Abstract: We have experimentally investigated low-repetition nanosecond pulses delivered from an erbium-doped fiber (EDF) laser operating in ultra-large anomalous dispersion regime. The output pulses with rectangular profile and Gaussian spectrum almost keep invariable when they propagate through either normal- or anomalous-dispersion fibers. After nanosecond pulses are amplified via a two-stage EDF amplifier, they are broken up and exhibited as flatly broadened supercontinuum from 1520 to 1700 nm if amplified pulses are launched into a 10-km single-mode fiber, whereas the pulses retain the same duration with a broadband supercontinuum from 1200 to 1750 nm if they are input into a 100-m highly-nonlinear low-dispersion photonic-crystal fiber (PCF). The experimental observations demonstrate that the nanosecond pulses result from nonlinear polarization switching and can be regarded as dispersion-insensitive low-coherent pulses rather than compressible pulses.

Accession Number: WOS:000297732800014

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Mao, Dong 

K-6333-2016 

 

Mao, Dong 

G-5113-2014 

 

Lu, Hua 

G-3042-2014 

 

Wu, Jiale 

JQV-3750-2023 

 

 

ISSN: 1054-660X

 


 

Record 24 of 209

Title: Low-Temperature Brush-Shaped Large-Volume Plasma Generated by Direct Current Discharge at Atmospheric Pressure

Author(s): Sun, AM (Sun, Aimin); Tang, J (Tang, Jie); Cao, WQ (Cao, Wenqing); Zhao, W (Zhao, Wei); Duan, YX (Duan, Yixiang)

Source: IEEE TRANSACTIONS ON PLASMA SCIENCE  Volume: 39  Issue: 11  Special Issue: SI  Pages: 2084-2085  DOI: 10.1109/TPS.2011.2132742  Part: 1  Published: NOV 2011  

Abstract: Low-temperature plasma is generated by glow discharge with a high direct current power supply and argon gas. A brush-shaped plasma source with large volume is obtained with a width of 15 mm, a thickness of 1 mm, and a length of about 18 mm. The source design and mechanism of the plasma generation are presented and discussed. The large-volume plasma source provides advantages in surface treatment, such as high working efficiency, sufficient utilization of the plasma gas, and natural cooling down. The characteristics of large volume, high energy density, and low temperature allow this kind of plasma source to be more suitable to practical applications.

Accession Number: WOS:000299683400015

ISSN: 0093-3813

eISSN: 1939-9375

 


 

Record 25 of 209

Title: Nonequilibrium Plasmas Generated by Dielectric Barrier Discharges at Atmospheric Pressure

Author(s): Tang, J (Tang, Jie); Zhao, W (Zhao, Wei); Duan, JN (Duan, Jiana); Duan, YX (Duan, Yixiang)

Source: IEEE TRANSACTIONS ON PLASMA SCIENCE  Volume: 39  Issue: 11  Special Issue: SI  Pages: 2080-2081  DOI: 10.1109/TPS.2011.2159126  Part: 1  Published: NOV 2011  

Abstract: Both propane plasma and air plasma are successfully generated at atmospheric pressure by using two dielectric barrier discharge reactors with different configurations, in which one is used to activate propane and the other is used to activate air. The plasma pictures show that the microdischarge channels in the plasmas increase and become increasingly more uniform with the deposited power under both activation methods. It is found that the propane plasma is of an ivory white color, while the air plasma is purple, as a result of the different gas components. A 30-W propane or air plasma leads to a significant temperature rise of the main flame, attributed to the production of reactive radicals and fuel fragments in such plasmas.

Accession Number: WOS:000299683400013

ISSN: 0093-3813

 


 

Record 26 of 209

Title: Spatial Domain Display for Interference Image Dataset

Author(s): Wang, CL (Wang Cai-ling); Li, YS (Li Yu-shan); Liu, XB (Liu Xue-bin); Hu, BL (Hu Bing-liang); Jing, JJ (Jing Juan-juan); Wen, J (Wen Jia)

Source: SPECTROSCOPY AND SPECTRAL ANALYSIS  Volume: 31  Issue: 11  Pages: 3158-3162  DOI: 10.3964/j.issn.1000-0593(2011)11-3158-05  Published: NOV 2011  

Abstract: The requirements of imaging interferometer visualization is imminent for the user of image interpretation and information extraction. However, the conventional researches on visualization only focus on the spectral image dataset in spectral domain. Hence, the quick show of interference spectral image dataset display is one of the nodes in interference image processing. The conventional visualization of interference dataset chooses classical spectral image dataset display method after Fourier transformation. In the present paper, the problem of quick view of interferometer imager in image domain is addressed and the algorithm is proposed which simplifies the matter. The Fourier transformation is an obstacle since its computation time is very large and the complexion would be even deteriorated with the size of dataset increasing. The algorithm proposed, named interference weighted envelopes, makes the dataset divorced from transformation. The authors choose three interference weighted envelopes respectively based on the Fourier transformation, features of interference data and human visual system. After comparing the proposed with the conventional methods, the results show the huge difference in display time.

Accession Number: WOS:000296689700063

PubMed ID: 22242539

ISSN: 1000-0593

 


 

Record 27 of 209

Title: Preliminary Study of Zinc Ion Sensor with the Function of Imaging

Author(s): Wang, J (Wang Jian); Wang, LL (Wang Li-li)

Source: SPECTROSCOPY AND SPECTRAL ANALYSIS  Volume: 31  Issue: 11  Pages: 3145-3148  DOI: 10.3964/j.issn.1000-0593(2011)11-3145-04  Published: NOV 2011  

Abstract: A zinc ion fluorescence sensor with imaging was fabricated by using 1-(2-Pyridylazo)-2-naphthol and fluorescent reagent of rhodamine B together as the indication which was immobilized on an tip of gradient index lens by base catalyzed sol-gel method. Combined with improved metallographic microscope and laser, the measurement of zinc ion concentration and the view of sample morphology could be realized simultaneously by this system. The sensor has the linear range of zinc ion concentration from 0.1 to 1 mmol . L(-1). Moreover, it has the capabilities of imaging with the whole system's resolution of 18.73 lp . mm(-1). This sensor with the function of imaging has the potential applications in biosensing.

Accession Number: WOS:000296689700060

PubMed ID: 22242536

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Wang, Lili 

S-3617-2018 

 

 

ISSN: 1000-0593

 


 

Record 28 of 209

Title: Femtosecond electron pulse compression by using the time focusing technique in ultrafast electron diffraction

Author(s): Wen, WL (Wen Wen-Long); Lei, XH (Lei Xiao-Hong); Hu, X (Hu Xin); Xu, XY (Xu Xiang-Yan); Wang, JF (Wang Jun-Feng); Cao, XB (Cao Xi-Bin); Liu, HL (Liu Hu-Lin); Wang, C (Wang Chao); Dang, LH (Dang Li-Hong); Tian, JS (Tian Jin-Shou)

Source: CHINESE PHYSICS B  Volume: 20  Issue: 11  Article Number: 114102  DOI: 10.1088/1674-1056/20/11/114102  Published: NOV 2011  

Abstract: We present a new model of an electron gun for generating subrelativistic femtosecond (fs) electron pulses. The basic idea is to utilize a dc acceleration stage combined with a time focusing region, the time focusing electrode generates an electron energy chirp for bunching at the target. Without considering the space charge effects, simulations of the electron gun were carried out under the conditions of different dc voltages and various slopes of the voltage added on the time focusing electrode. Tracing and simulating large numbers of photoelectrons through Monte-Carlo and finite difference methods, the electron pulses with 1 ps can be compressed to 55 fs, which will allow significant advances in the field of ultrafast diagnosis.

Accession Number: WOS:000298491700032

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Wang, Chao 

HKW-3832-2023 

 

WANG, CHAO 

 

0000-0002-2473-2973 

 

ISSN: 1674-1056

eISSN: 1741-4199

 


 

Record 29 of 209

Title: Theoretical study of all-optical RZ to NRZ format conversion based on cascaded nanoporous silicon waveguides

Author(s): Wu, JW (Wu, Jian-Wei)

Source: INFRARED PHYSICS & TECHNOLOGY  Volume: 54  Issue: 6  Pages: 465-468  DOI: 10.1016/j.infrared.2011.07.011  Published: NOV 2011  

Abstract: In this paper, we present that the strong free carrier absorption and short carrier lifetime in nanoporous silicon waveguide can perform effectively the return-to-zero (RZ) to non-return-to zero (NRZ) format conversion. The project presented consisting of two cascaded millimeters long nanoporous silicon waveguides is numerically simulated and investigated at 5 Gbit/s. Numerical results clearly show that the outcome converted signal (NRZ) at the end of proposed device can be effectively optimized (e.g. clearer extinction ratio - ER, higher Q-factor, and lower bit-error rate - BER) by means of suitably choosing the system parameters such as initial RZ peak level and nanoporous silicon waveguide length. (C) 2011 Elsevier B.V. All rights reserved.

Accession Number: WOS:000297183100004

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Wu, Jian 

AAU-5221-2020 

0000-0001-9933-7364 

Wu, Jian 

AAU-5221-2020 

0000-0002-3394-1507 

 

ISSN: 1350-4495

 


 

Record 30 of 209

Title: Decoding algorithms of single photon counting imager based on two-dimensional Vernier anodes

Author(s): Yang, H (Yang Hao); Zhao, BS (Zhao BaoSheng); Yan, QR (Yan QiuRong); Liu, YA (Liu YongAn); Hu, HJ (Hu HuiJun)

Source: SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY  Volume: 54  Issue: 11  Pages: 1943-1947  DOI: 10.1007/s11433-011-4490-y  Published: NOV 2011  

Abstract: The decoding algorithms of two-dimensional Vernier anodes are deduced theoretically. The precision of decoding and uniqueness of encoding are proved. The influencing factors of detection sensitivity and spatial resolution are discussed. The single photon imaging system is constructed, and the two-dimensional Vernier collector is fabricated. The image of the ultra-weak emission source is reconstructed. The spatial resolution of the system is about 100 mu m.

Accession Number: WOS:000297362200004

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

zhang, shijie 

HGF-0836-2022 

 

feng, chen 

JLM-8296-2023 

 

 

ISSN: 1674-7348

eISSN: 1869-1927

 


 

Record 31 of 209

Title: Real-Time Measurement of Detonation Transient Temperature

Author(s): Zheng, JK (Zheng Jin-kun); Bai, YL (Bai Yong-lin); Wang, B (Wang Bo); Liu, BY (Liu Bai-yu); Yang, WZ (Yang Wen-zheng); Bai, XH (Bai Xiao-hong); Qin, JJ (Qin Jun-jun); Zhao, JP (Zhao Jun-ping); Gou, YS (Gou Yong-sheng); Liu, H (Liu Hui)

Source: SPECTROSCOPY AND SPECTRAL ANALYSIS  Volume: 31  Issue: 11  Pages: 3060-3063  DOI: 10.3964/j.issn.1000-0593(2011)11-3060-04  Published: NOV 2011  

Abstract: Based on the spectral characteristic of the detonation temperature, the present paper presents a measurement system of transient multi-wavelength pyrometry with the theory of multi-wavelength thermometry. The FPGA was applied as the hardware developing platform and the high-speed linear CCD was utilized. Each module was controlled by FPGA to achieve the process of real-time data acquisition, storage and transmission. Using the multiple regression analysis method, the dynamic spectral waveforms were calculated. The two laser spectral lines, 630 and 532 nm, were used to calibrate the corresponding pixel sequence numbers and the No. 175 and No. 270 were confirmed. In this paper, the halide tungsten light was measured. The results show that the system can sample continuous spectrum signal at several different times; the CCD can stably work with 40 MHz clock and the frame scanning frequency can achieve 73 kHz.

Accession Number: WOS:000296689700041

PubMed ID: 22242517

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Liu, Huibiao 

H-3208-2011 

 

bai, yonglin 

GVT-7190-2022 

 

liu, hui 

HTO-8112-2023 

 

Yang, Wenzheng 

H-6022-2011 

 

 

ISSN: 1000-0593

 


 

Record 32 of 209

Title: Analysis of birefringent and dispersive properties of photonic crystal fibers

Author(s): Lu, S (Lu, S.); Li, W (Li, W.); Guo, H (Guo, H.); Lu, M (Lu, M.)

Source: APPLIED OPTICS  Volume: 50  Issue: 30  Pages: 5798-5802  DOI: 10.1364/AO.50.005798  Published: OCT 20 2011  

Abstract: Two types of high birefringence photonic crystal fiber (PCF) which import four or six big circular air holes near the elliptical-hole are proposed. Their birefringent and dispersive properties are analyzed by full-vector finite-element method (FEM). Numerical analysis demonstrates that importing the big circular hole near the center of elliptical-hole PCFs can achieve a high birefringence. When the ratio (d/Lambda) of diameter to hole spacing is larger than 0.8, the proposed two types of PCF have a larger birefringence than that of sole elliptical air hole ones. When the ratio d/Lambda is equal to 0.95, the birefringences of these two types PCF can be as high as 4.27 x 10(-3) and 5: 09 x 10(-3) at the wavelength of 1.55 mu m, respectively. Besides, PCF with the four big circular air holes has a large negative dispersion at the long wavelength in x-polarized mode, which indicates a potential in single-polarized mode dispersion compensation. (C) 2011 Optical Society of America

Accession Number: WOS:000296555300006

PubMed ID: 22015407

ISSN: 1559-128X

eISSN: 2155-3165

 


 

Record 33 of 209

Title: Spatially resolved X-ray spectroscopy using a flat HOPG crystal

Author(s): Yuan, XH (Yuan, X. H.); Carroll, DC (Carroll, D. C.); Coury, M (Coury, M.); Gray, RJ (Gray, R. J.); Brenner, CM (Brenner, C. M.); Lin, XX (Lin, X. X.); Li, YT (Li, Y. T.); Quinn, MN (Quinn, M. N.); Tresca, O (Tresca, O.); Zielbauer, B (Zielbauer, B.); Neely, D (Neely, D.); McKenna, P (McKenna, P.)

Source: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT  Volume: 653  Issue: 1  Pages: 145-149  DOI: 10.1016/j.nima.2010.12.147  Published: OCT 11 2011  

Abstract: A novel design of a 1-D imaging X-ray spectrometer is implemented, using a high efficiency HOPG (highly oriented pyrolitic graphite) Bragg crystal and a double-entrance-slit. The double slit provides self-calibration of the imaging magnification. The spatial and spectral resolutions and dispersion are characterised both analytically and by ray tracing simulations. A key feature of this approach is that it enables the X-ray spectrum to be measured over different regions of the plasma source. The application of this instrument is demonstrated in high intensity laser-foil interaction experiments. (C) 2010 Elsevier B.V. All rights reserved.

Accession Number: WOS:000295663800032

Conference Title: 4th International Conference on Superstrong Fields in Plasmas

Conference Date: OCT 03-09, 2010

Conference Location: Varenna, ITALY

Conference Sponsors: European Sci Fdn (ESF), Piero Caldirola, Universita degli Studi Milano Bicocca, Dipartimento di Energia, Politecnico di Milano, INFN-Natl Inst Nucl Phys, European Phys Soc

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

McKenna, Paul 

P-5259-2019 

0000-0001-8061-7091 

yuan, xiaohui 

O-4622-2015 

 

zhang, yan 

JGL-8022-2023 

 

Neely, David 

AAJ-7708-2020 

 

gray, robert 

HJB-2567-2022 

 

Gray, Ross 

 

0000-0003-0610-9595 

Carroll, David 

 

0000-0002-7894-0882 

Brenner, Ceri 

 

0000-0003-0347-4415 

 

ISSN: 0168-9002

eISSN: 1872-9576

 


 

Record 34 of 209

Title: Single- and dual-pulse oscillation in a passively Q-switched Nd:YAG microchip laser

Author(s): Niu, LQ (Niu, Linquan); Gao, CX (Gao, Cunxiao); Zhu, SL (Zhu, Shaolan); Sun, CD (Sun, Chuandong); He, HD (He, Haodong); Song, ZY (Song, Zhiyuan); Tang, WD (Tang, Weidong)

Source: OPTICS EXPRESS  Volume: 19  Issue: 21  Pages: 20628-20633  DOI: 10.1364/OE.19.020628  Published: OCT 10 2011  

Abstract: Experimental investigation of single and dual pulses in a passively Q-switched Nd:YAG microchip laser with a Cr4+:YAG saturable absorber has been reported. The dual pulses consist of a main and a satellite pulse with respective spectra, intensities, and durations. It is found that the preponderant oscillating mode gives birth to the main pulse, and the other oscillating mode corresponds to the satellite pulse. Our results demonstrate that the dual-pulse emission results from double-longitudinal-mode oscillation in high pump regime. (C)2011 Optical Society of America

Accession Number: WOS:000296065700085

PubMed ID: 21997072

ISSN: 1094-4087

 


 

Record 35 of 209

Title: Biopsy needle detection in transrectal ultrasound

Author(s): Ayvaci, A (Ayvaci, Alper); Yan, PK (Yan, Pingkun); Xu, S (Xu, Sheng); Soatto, S (Soatto, Stefano); Kruecker, J (Kruecker, Jochen)

Source: COMPUTERIZED MEDICAL IMAGING AND GRAPHICS  Volume: 35  Issue: 7-8  Special Issue: SI  Pages: 653-659  DOI: 10.1016/j.compmedimag.2011.03.005  Published: OCT-DEC 2011  

Abstract: Using the fusion of pre-operative MRI and real time intra-procedural transrectal ultrasound (TRUS) to guide prostate biopsy has been shown as a very promising approach to yield better clinical outcome than the routinely performed TRUS only guided biopsy. In several situations of the MRI/TRUS fusion guided biopsy, it is important to know the exact location of the deployed biopsy needle, which is imaged in the TRUS video. In this paper, we present a method to automatically detect and segment the biopsy needle in TRUS. To achieve this goal, we propose to combine information from multiple resources, including ultrasound probe stability, TRUS video background model, and the prior knowledge of needle orientation and position. The proposed algorithm was tested on TRUS video sequences which have in total more than 25,000 frames. The needle deployments were successfully detected and segmented in the sequences with high accuracy and low false-positive detection rate. (C) 2011 Elsevier Ltd. All rights reserved.

Accession Number: WOS:000295542800015

PubMed ID: 21531538

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Yan, Pingkun 

W-5059-2019 

0000-0002-9779-2141 

 

ISSN: 0895-6111

eISSN: 1879-0771

 


 

Record 36 of 209

Title: Vehicle Detection and Motion Analysis in Low-Altitude Airborne Video Under Urban Environment

Author(s): Cao, XB (Cao, Xianbin); Wu, CX (Wu, Changxia); Lan, JH (Lan, Jinhe); Yan, PK (Yan, Pingkun); Li, XL (Li, Xuelong)

Source: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY  Volume: 21  Issue: 10  Pages: 1522-1533  DOI: 10.1109/TCSVT.2011.2162274  Published: OCT 2011  

Abstract: Visual surveillance from low-altitude airborne platforms plays a key role in urban traffic surveillance. Moving vehicle detection and motion analysis are very important for such a system. However, illumination variance, scene complexity, and platform motion make the tasks very challenging. In addition, the used algorithms have to be computationally efficient in order to be used on a real-time platform. To deal with these problems, a new framework for vehicle detection and motion analysis from low-altitude airborne videos is proposed. Our paper has two major contributions. First, to speed up feature extraction and to retain additional global features in different scales for higher classification accuracy, a boosting light and pyramid sampling histogram of oriented gradients feature extraction method is proposed. Second, to efficiently correlate vehicles across different frames for vehicle motion trajectories computation, a spatio-temporal appearance-related similarity measure is proposed. Compared to other representative existing methods, our experimental results showed that the proposed method is able to achieve better performance with higher detection rate, lower false positive rate, and faster detection speed.

Accession Number: WOS:000295585000016

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Li, Xuelong 

ABF-3381-2020 

 

li, xiang 

GWM-6319-2022 

 

Yan, Pingkun 

W-5059-2019 

0000-0002-9779-2141 

Li, Xuelong 

Z-3785-2019 

 

Li, Xuelong 

 

0000-0002-0019-4197 

 

ISSN: 1051-8215

eISSN: 1558-2205

 


 

Record 37 of 209

Title: Rapid pedestrian detection in unseen scenes

Author(s): Cao, XB (Cao, Xianbin); Wang, Z (Wang, Zhong); Yan, PK (Yan, Pingkun); Li, XL (Li, Xuelong)

Source: NEUROCOMPUTING  Volume: 74  Issue: 17  Pages: 3343-3350  DOI: 10.1016/j.neucom.2011.05.019  Published: OCT 2011  

Abstract: In this paper, a rapid adaptive pedestrian detection method based on cascade classifier with ternary pattern is proposed. The proposed method achieves its goal by employing the following three new strategies: (1) A method for adjusting the key parameters of the trained cascade classifier dynamically for detecting pedestrians in unseen scenes using only a small amount of labeled data from the new scenes. (2) An efficient optimization method is proposed, based on the cross entropy method and a priori knowledge of the scenes, to solve the classifier parameter optimization problem. (3) In order to further speed up pedestrian detection in unseen scenes, each strong classifier in the cascade employs a ternary detection pattern. In our experiments, two significantly different datasets, AHHF and NICTA, were used as the training set and testing set, respectively. The experimental results showed that the proposed method can quickly adapt a previously trained detector for pedestrian detection in various scenes compared with other existing methods. (C) 2011 Elsevier B.V. All rights reserved.

Accession Number: WOS:000296212400066

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Yan, Pingkun 

W-5059-2019 

0000-0002-9779-2141 

Li, Xuelong 

Z-3785-2019 

 

li, xiang 

GWM-6319-2022 

 

Li, Xuelong 

ABF-3381-2020 

 

Wang, Zhong 

 

0000-0001-7987-4883 

Li, Xuelong 

 

0000-0002-0019-4197 

 

ISSN: 0925-2312

eISSN: 1872-8286

 


 

Record 38 of 209

Title: Comparison of supercontinuum generation based on high-energy nanosecond pulses via single-mode and photonic-crystal fibers

Author(s): Duan, LN (Duan, L. N.); Liu, XM (Liu, X. M.); Wang, LR (Wang, L. R.); Mao, D (Mao, D.); Wang, GX (Wang, G. X.)

Source: LASER PHYSICS  Volume: 21  Issue: 10  Pages: 1813-1819  DOI: 10.1134/S1054660X11190091  Published: OCT 2011  

Abstract: We have experimentally investigated the supercontinuum (SC) generation based on high-energy Gaussian-spectrum pulses emitted from an erbium-doped fiber laser with large-anomalous dispersion. The pulses exhibit rectangular shape in temporal domain with the pulse duration of about 16 ns. When the amplified pulses propagate through 10-km single-mode fiber, the SC ranged from 1530 to 1750 nm arises from the stimulated-Raman-scattering effect and the pulses break up due to the modulation instability. Comparatively, when the amplified pulses propagate through a segment of highly-nonlinear zero-dispersion-flattened photonic crystal fiber, super-broad SC beyond the range of 1300-1750 nm is generated due to strong four-wave mixing effect, whereas the pulses almost maintain their shapes.

Accession Number: WOS:000295535700027

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Mao, Dong 

G-5113-2014 

 

Wu, Jiale 

JQV-3750-2023 

 

Chen, Feng 

JQW-8742-2023 

 

 

ISSN: 1054-660X

 


 

Record 39 of 209

Title: Zernike-Moment-Based Image Super Resolution

Author(s): Gao, XB (Gao, Xinbo); Wang, Q (Wang, Qian); Li, XL (Li, Xuelong); Tao, DC (Tao, Dacheng); Zhang, KB (Zhang, Kaibing)

Source: IEEE TRANSACTIONS ON IMAGE PROCESSING  Volume: 20  Issue: 10  Pages: 2738-2747  DOI: 10.1109/TIP.2011.2134859  Published: OCT 2011  

Abstract: Multiframe super-resolution (SR) reconstruction aims to produce a high-resolution (HR) image using a set of low-resolution (LR) images. In the process of reconstruction, fuzzy registration usually plays a critical role. It mainly focuses on the correlation between pixels of the candidate and the reference images to reconstruct each pixel by averaging all its neighboring pixels. Therefore, the fuzzy-registration-based SR performs well and has been widely applied in practice. However, if some objects appear or disappear among LR images or different angle rotations exist among them, the correlation between corresponding pixels becomes weak. Thus, it will be difficult to use LR images effectively in the process of SR reconstruction. Moreover, if the LR images are noised, the reconstruction quality will be affected seriously. To address or at least reduce these problems, this paper presents a novel SR method based on the Zernike moment, to make the most of possible details in each LR image for high-quality SR reconstruction. Experimental results show that the proposed method outperforms existing methods in terms of robustness and visual effects.

Accession Number: WOS:000295008100004

PubMed ID: 21926001

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Zhang, Kai 

HWQ-4396-2023 

 

Li, Xuelong 

Z-3785-2019 

 

Li, Xuelong 

ABF-3381-2020 

 

Tao, Dacheng 

A-5449-2012 

0000-0001-7225-5449 

li, xiang 

GWM-6319-2022 

 

Li, Xuelong 

 

0000-0002-0019-4197 

 

ISSN: 1057-7149

eISSN: 1941-0042

 


 

Record 40 of 209

Title: Transfer latent variable model based on divergence analysis

Author(s): Gao, XB (Gao, Xinbo); Wang, XM (Wang, Xiumei); Li, XL (Li, Xuelong); Tao, DC (Tao, Dacheng)

Source: PATTERN RECOGNITION  Volume: 44  Issue: 10-11  Special Issue: SI  Pages: 2358-2366  DOI: 10.1016/j.patcog.2010.06.013  Published: OCT-NOV 2011  

Abstract: Latent variable models are powerful dimensionality reduction approaches in machine learning and pattern recognition. However, this kind of methods only works well under a necessary and strict assumption that the training samples and testing samples are independent and identically distributed. When the samples come from different domains, the distribution of the testing dataset will not be identical with the training dataset. Therefore, the performance of latent variable models will be degraded for the reason that the parameters of the training model do not suit for the testing dataset. This case limits the generalization and application of the traditional latent variable models. To handle this issue, a transfer learning framework for latent variable model is proposed which can utilize the distance (or divergence) of the two datasets to modify the parameters of the obtained latent variable model. So we do not need to rebuild the model and only adjust the parameters according to the divergence, which will adopt different datasets. Experimental results on several real datasets demonstrate the advantages of the proposed framework. (C) 2010 Elsevier Ltd. All rights reserved.

Accession Number: WOS:000292849000014

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Tao, Dacheng 

A-5449-2012 

0000-0001-7225-5449 

li, xiang 

GWM-6319-2022 

 

Li, Xuelong 

ABF-3381-2020 

 

Li, Xuelong 

Z-3785-2019 

 

Li, Xuelong 

 

0000-0002-0019-4197 

Wang, Xiumei 

 

0000-0002-2397-951X 

 

ISSN: 0031-3203

eISSN: 1873-5142

 


 

Record 41 of 209

Title: NUMERICAL SIMULATION OF ULTRA-BROADBAND PHASE-SENSITIVE OPTICAL PARAMETRIC AMPLIFICATION OF IMAGE

Author(s): Li, XF (Li, Xuefeng); Long, HB (Long, Hanbo); Liu, HJ (Liu, Hongjun)

Source: JOURNAL OF RUSSIAN LASER RESEARCH  Volume: 32  Issue: 6  Pages: 547-555  DOI: 10.1007/s10946-011-9245-8  Published: OCT 2011  

Abstract: The ultra-broadband phase-sensitive optical parametric amplification and de-amplification of image in a BBO nonlinear crystal with type I phase-matching are theoretically investigated. Amplified images with a gain of 10(8) and a bandwidth as broad as 420 nm are realized using a 25 GW/cm(-2) peak pump-power density with 1.125 ps chirped-pulse duration. The spatial resolution after optical parametric amplification is estimated to be q(0) -200 rad/mm (i.e., 31.8 lines/mm), which corresponds to the size of the minimum resolvable feature of the amplified image similar to 5 mu m.

Accession Number: WOS:000298231900005

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Liu, Hongjun 

D-2541-2016 

 

 

ISSN: 1071-2836

eISSN: 1573-8760

 


 

Record 42 of 209

Title: Optimization for limited angle tomography in medical image processing

Author(s): Lu, XQ (Lu, Xiaoqiang); Sun, Y (Sun, Yi); Yuan, Y (Yuan, Yuan)

Source: PATTERN RECOGNITION  Volume: 44  Issue: 10-11  Special Issue: SI  Pages: 2427-2435  DOI: 10.1016/j.patcog.2010.12.016  Published: OCT-NOV 2011  

Abstract: This paper aims to reduce the problems of incomplete data in computed tomography, which happens frequently in medical image process and analysis, e.g., when the high-density region of objects can only be penetrated by X-rays at a limited angular range. As the projection data are available only in an angular range, the incomplete data problem can be attributed to the limited angle problem, which is an ill-posed inverse problem. Image reconstruction based on total variation (TV) reduces the problem and gives better performance on edge-preserving reconstruction: however, the artificial parameter can only be determined through considerable experimentation. In this paper, an effective TV objective function is proposed to reduce the inverse problem in the limited angle tomography. This novel objective function provides a robust and effective reconstruction without any artificial parameter in the iterative processes, using the TV as a multiplicative constraint. The results demonstrate that this reconstruction strategy outperforms some previous ones. (C) 2011 Published by Elsevier Ltd.

Accession Number: WOS:000292849000020

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Yuan, Yuan 

GVS-5120-2022 

 

yuan, Yuan 

ISA-0923-2023 

 

Yuan, Yuan 

ABB-2379-2020 

 

 

ISSN: 0031-3203

eISSN: 1873-5142

 


 

Record 43 of 209

Title: Effects of the Host Morphologies on Luminescence Properties of Nd<SUP>3+</SUP>-Doped LaF<sub>3</sub> Nanoparticles

Author(s): She, JB (She, Jiangbo); Hou, CQ (Hou, Chaoqi); Guol, HT (Guol, Haitao); Gao, C (Gao, Chao); Cui, XX (Cui, Xiaoxia); Lu, M (Lu, Min); Wei, W (Wei, Wei); Peng, B (Peng, Bo)

Source: JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY  Volume: 11  Issue: 10  Pages: 8609-8612  DOI: 10.1166/jnn.2011.4961  Published: OCT 2011  

Abstract: By using different surfactants, several host morphologies including rod-like, pot-like and shuttle-like of LaF(3):Nd(3+) (1% mol) nanoparticles were prepared by a simple microemulsion hydrothermal method, and their properties were characterised by XRD, TEM and photoluminescence spectroscopy. The experimental results indicated that the rod-like and pot-like nanocrystals possess well shaped hollow structures. The analysis of spectra proved that the local environment around the dopant ion changed with the different host morphology, which in turn influenced the luminescence properties. The luminescence lifetimes derived from biexponential fitting were 615 mu s (nanopots), 419 mu s (nanorods) and 194 mu s (nanoshuttles), respectively. This phenomenon is ascribed to the weakening effect of hollow or fenestral structures to the nonradiative ratio.

Accession Number: WOS:000298363900026

PubMed ID: 22400232

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Lu, minfeng 

K-7972-2015 

 

Lu, min 

JPL-4028-2023 

 

 

ISSN: 1533-4880

 


 

Record 44 of 209

Title: HIGH EFFICIENCY AND HIGH BEAM QUALITY 3.467-μm KTA EXTRACAVITY OPTICAL PARAMETRIC OSCILLATOR

Author(s): Sun, QB (Sun, Qibing); Liu, HJ (Liu, Hongjun); Huang, N (Huang, Nan); Ruan, C (Ruan, Chi); Zhu, SL (Zhu, Shaolan); Zhao, W (Zhao, Wei)

Source: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS  Volume: 53  Issue: 10  Pages: 2204-2207  DOI: 10.1002/mop.26247  Published: OCT 2011  

Abstract: An efficient single resonant extracavity optical parametric oscillator is demonstrated based on a Type II noncritical phase matching KTA crystal. Under a pump power of 0.6 W and a pulse width of 13 ns, the average power of 86 mW at 3.467 mu m is obtained with the pulse width of 6 ns and repetition rate of 100 Hz, corresponding to a conversion efficiency as high as 14% from 1.064 to 3.467 mu m. The beam spatial profile for 3.467 pm is near TEM00 mode. The average power of 123 mW is also obtained with a multitransverse mode at the repetition rate of 200 Hz and an average power of 2.3 W of the pump laser. (C) 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2204-2207, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26247

Accession Number: WOS:000293991300003

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Huang, Nan 

IYI-9977-2023 

 

Liu, Hongjun 

D-2541-2016 

 

 

ISSN: 0895-2477

eISSN: 1098-2760

 


 

Record 45 of 209

Title: Two dimensional principal components of natural images and its application

Author(s): Wang, D (Wang, Dong); Lu, HC (Lu, Huchuan); Li, XL (Li, Xuelong)

Source: NEUROCOMPUTING  Volume: 74  Issue: 17  Pages: 2745-2753  DOI: 10.1016/j.neucom.2011.03.047  Published: OCT 2011  

Abstract: In this paper, two dimensional principal components of natural images (2D-PCs) are proposed. Similar to principal components of natural images (1D-PCs), 2D-PCs can also be viewed as fundamental components of human's receptive field because they contain edge-like, bar-like and grating-like patterns. However, compared to 1D-PCs, 2D-PCs are of surprising symmetry, stable regularity, good interpretability, and have little computational complexity in real applications. Then, based on 1D-PCs and 2D-PCs, we design two kinds of statistical texture features (STF(1D) and STF(2D)), and apply them to multi-class facial expression recognition. Numerous experimental results demonstrate that our statistical texture features are better or not worse than other popular features for facial expression recognition. (C) 2011 Elsevier B.V. All rights reserved.

Accession Number: WOS:000296212400005

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

li, xiang 

GWM-6319-2022 

 

Li, Xuelong 

Z-3785-2019 

 

Li, Xuelong 

ABF-3381-2020 

 

Li, Xuelong 

 

0000-0002-0019-4197 

 

ISSN: 0925-2312

eISSN: 1872-8286

 


 

Record 46 of 209

Title: Supercontinuum generation employing the high-energy wave-breaking-free pulse in a compact all-fiber laser system

Author(s): Wang, LR (Wang, L. R.); Liu, XM (Liu, X. M.); Gong, YK (Gong, Y. K.); Mao, D (Mao, D.); Duan, LN (Duan, L. N.)

Source: LASER PHYSICS  Volume: 21  Issue: 10  Pages: 1797-1803  DOI: 10.1134/S1054660X11170245  Published: OCT 2011  

Abstract: Supercontinuum (SC) generation is experimentally achieved in a compact all-fiber laser system by using high-energy wave-breaking-free dissipative soliton (DS) pulses. The pulses exhibit Gaussian (rectangular) shape profiles in spectral (temporal) domain, which is even reversed of the typical rectangular-spectrum DSs. With the increase of pump power the pulse duration enlarges dramatically whereas the bandwidth and peak power of the pulse keep almost constant, which enables the pulse to accumulate much higher energy during the pulse-shaping process. When inputting the amplified pulse into the single-mode fiber, SC with excellent flatness is generated with the spectral range from about 1550 to 1700 nm. Broader SC with the bandwidth of even larger than 1000 nm can also be generated by this kind of pulse in the near-zero-dispersion-flattened photonic-crystal fiber through strong nonlinear effects.

Accession Number: WOS:000295535700024

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Mao, Dong 

G-5113-2014 

 

Wu, Jiale 

JQV-3750-2023 

 

Gong, Yongkang 

F-1335-2017 

0000-0002-2830-4423 

 

ISSN: 1054-660X

 


 

Record 47 of 209

Title: Influence of spectral broadening on femtosecond wavelength conversion based on four-wave mixing in silicon waveguides

Author(s): Wang, ZL (Wang, Zhaolu); Liu, HJ (Liu, Hongjun); Huang, N (Huang, Nan); Sun, QB (Sun, Qibing); Wen, J (Wen, Jin)

Source: APPLIED OPTICS  Volume: 50  Issue: 28  Pages: 5430-5436  DOI: 10.1364/AO.50.005430  Published: OCT 1 2011  

Abstract: Femtosecond wavelength conversion in the telecommunication bands via four-wave mixing in a 1.5mm long silicon rib waveguide is theoretically investigated. Compared with picosecond pulses, the spectra are greatly broadened for the femtosecond pulses due to self-phase modulation and cross-phase modulation in the four-wave mixing process, and it is difficult to achieve a wavelength converter when the pump and signal pulse widths are close to or less than 100 fs in the telecommunication bands because of the spectral overlap. The influence of the spectral broadening on the conversion efficiency is also investigated. The conversion bandwidth of 220nm and peak conversion efficiency of -8 dB are demonstrated by using 500 fs pulses with higher efficiency than the picosecond pulse-pumped efficiency when the repetition rate is 100 GHz. (C) 2011 Optical Society of America

Accession Number: WOS:000295842600030

PubMed ID: 22016209

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Liu, Hongjun 

D-2541-2016 

 

Huang, Nan 

IYI-9977-2023 

 

lin, yuan 

JXL-9592-2024 

 

 

ISSN: 1559-128X

eISSN: 2155-3165

 


 

Record 48 of 209

Title: Hadamard Transform Spectrometer Mixed Pixels' Unmixing Method

Author(s): Yan, P (Yan Peng); Hu, BL (Hu Bing-liang); Liu, XB (Liu Xue-bin); Sun, W (Sun Wei); Li, LB (Li Li-bo); Feng, YT (Feng Yu-tao); Liu, YZ (Liu Yong-zheng)

Source: SPECTROSCOPY AND SPECTRAL ANALYSIS  Volume: 31  Issue: 10  Pages: 2870-2873  DOI: 10.3964/j.issn.1000-0593(2011)10-2870-04  Published: OCT 2011  

Abstract: Hadamard transform imaging spectrometer is a multi-channel digital transform spectrometer detection technology, this paper based on digital micromirror array device (DMD) of the Hadamard transform spectrometer working principle and instrument structure, obtained by the imaging sensor mixed pixel were analyzed, theory derived the solution of pixel aliasing hybrid method, simulation results show that the method is simple and effective to improve the accuracy of mixed pixel spectrum more than 10% recovery.

Accession Number: WOS:000295556300060

PubMed ID: 22250574

ISSN: 1000-0593

 


 

Record 49 of 209

Title: Solid waste plasma disposal plant

Author(s): Yang, LQ (Yang, Liqing); Wang, HJ (Wang, Haojing); Wang, HF (Wang, Hongfei); Wang, DP (Wang, Dapeng); Wang, Y (Wang, Yue)

Source: JOURNAL OF ELECTROSTATICS  Volume: 69  Issue: 5  Pages: 411-413  DOI: 10.1016/j.elstat.2011.05.007  Published: OCT 2011  

Abstract: This review describes the current status of waste plasma disposal plant. A comprehensive analysis of the available scientific and technical literature on waste plasma disposal plant, including the actual plant design and configuration, operation principle of core facility, the economic viability and floor area of a plasma plant. The case on the development and large scale commercial applications of the solid waste plasma disposal plant should be further research. (C) 2011 Elsevier B.V. All rights reserved.

Accession Number: WOS:000294582600001

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Wang, Dapeng 

HGD-4818-2022 

 

Wang, Hongfei 

JCF-2357-2023 

 

 

ISSN: 0304-3886

 


 

Record 50 of 209

Title: Segmentation of retinal blood vessels using the radial projection and semi-supervised approach

Author(s): You, XG (You, Xinge); Peng, QM (Peng, Qinmu); Yuan, Y (Yuan, Yuan); Cheung, YM (Cheung, Yiu-ming); Lei, JJ (Lei, Jiajia)

Source: PATTERN RECOGNITION  Volume: 44  Issue: 10-11  Special Issue: SI  Pages: 2314-2324  DOI: 10.1016/j.patcog.2011.01.007  Published: OCT-NOV 2011  

Abstract: Automatic segmentation of retinal blood vessels has become a necessary diagnostic procedure in ophthalmology. The blood vessels consist of two types of vessels, i.e., thin vessels and wide vessels. Therefore, a segmentation method may require two different processes to treat different vessels. However, traditional segmentation algorithms hardly draw a distinction between thin and wide vessels, but deal with them together. The major problems of these methods are as follows: (1) If more emphasis is placed on the extraction of thin vessels, the wide vessels tend to be over detected; and more artificial vessels are generated, too. (2) If more attention is paid on the wide vessels, the thin and low contrast vessels are likely to be missing. To overcome these problems, a novel scheme of extracting the retinal vessels based on the radial projection and semi-supervised method is presented in this paper. The radial projection method is used to locate the vessel centerlines which include the low-contrast and narrow vessels. Further, we modify the steerable complex wavelet to provide better capability of enhancing vessels under different scales, and construct the vector feature to represent the vessel pixel by line strength. Then, semi-supervised self-training is used for extraction of the major structures of vessels. The final segmentation is obtained by the union of the two types of vessels. Our approach is tested on two publicly available databases. Experiment results show that the method can achieve improved detection of thin vessels and decrease false detection of vessels in pathological regions compared to rival solutions. (C) 2011 Published by Elsevier Ltd.

Accession Number: WOS:000292849000010

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Yuan, Yuan 

ABB-2379-2020 

 

Cheung, Yiu-ming 

E-2050-2015 

0000-0001-7629-4648 

yuan, Yuan 

ISA-0923-2023 

 

Yuan, Yuan 

GVS-5120-2022 

 

 

ISSN: 0031-3203

eISSN: 1873-5142

 


 

Record 51 of 209

Title: Clock drift-tolerant optical bit pattern monitoring technique in asynchronous undersampling system

Author(s): Zhang, HX (Zhang, Huixing); Zhao, W (Zhao, Wei)

Source: OPTICAL ENGINEERING  Volume: 50  Issue: 10  Article Number: 105008  DOI: 10.1117/1.3640828  Published: OCT 2011  

Abstract: Based on an asynchronously undersampling system, we present a novel bit pattern monitoring technique in terms of its performance analysis and the implementation aspects. Relying upon an finite impulse response (FIR) filter assisted fine synchronization of the acquired samples, the technique can significantly reduce the random walk clock drift between data signal and sampling source compared to a conventional fine synchronization using a fixed time step. For the performance analysis of this technique, we first present an intuitive understanding of the principle of the FIR filter method under consideration of the filter frequency response. We find that the frequency response of the FIR filter simply serves to extract the spectral component at the aliasing frequency found in the periodogram and diminish all other frequency components. Then we test the tracking limit and discuss the optimized filter length choice of the new bit pattern monitoring technique through numerical examples. It turns out that the optimal filter length is chosen as the one which minimized the measured jitter and can be found iteratively. Finally, we present an experimental verification of this FIR bit pattern synchronization method by measuring and reconstructing bit patterns of 40 Gb/s nonreturn-to-zero and 160 Gb/s return-to-zero data signals, respectively. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.3640828]

Accession Number: WOS:000296559700029

ISSN: 0091-3286

eISSN: 1560-2303

 


 

Record 52 of 209

Title: Guiding and Confining Light in Low-Index Circularly Symmetric Waveguides

Author(s): Zhang, WF (Zhang, Wenfu); Mu, JW (Mu, Jian-Wei); Huang, WP (Huang, Wei-Ping); Zhao, W (Zhao, Wei)

Source: IEEE PHOTONICS JOURNAL  Volume: 3  Issue: 5  Pages: 854-860  DOI: 10.1109/JPHOT.2011.2167602  Published: OCT 2011  

Abstract: A circularly symmetric waveguide with a low-index ring inside the core has been proposed and studied comprehensively. By taking advantage of the azimuthal TM01 mode, the structure can confine light inside the low-index region with very high power confinement efficiency. Key characteristic parameters as functions of geometry factors have been investigated through rigorous finite-difference methods. The fabrication tolerance and the material candidate for various potential applications have been discussed.

Accession Number: WOS:000295446800004

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Mu, Jianwei 

A-8336-2012 

 

 

ISSN: 1943-0655

 


 

Record 53 of 209

Title: Optical bistability in metal-insulator-metal plasmonic waveguide with nanodisk resonator containing Kerr nonlinear medium

Author(s): Wang, GX (Wang, Guoxi); Lu, H (Lu, Hua); Liu, XM (Liu, Xueming); Gong, YK (Gong, Yongkang); Wang, LR (Wang, Leiran)

Source: APPLIED OPTICS  Volume: 50  Issue: 27  Pages: 5287-5290  DOI: 10.1364/AO.50.005287  Published: SEP 20 2011  

Abstract: We numerically investigate the optical bistability effect in the metal-insulator-metal waveguide with a nanodisk resonator containing a Kerr nonlinear medium. It is found that the increase of the refractive index, which is induced by enhancing the incident intensity, can cause a redshift for the resonance wavelength. The local resonant field excited in the nanodisk cavity can significantly increase the Kerr nonlinear effect. In addition, an obvious bistability loop is observed in the proposed structure. This nonlinear structure can find important applications for all-optical switching in highly integrated optical circuits. (C) 2011 Optical Society of America

Accession Number: WOS:000295028000010

PubMed ID: 21947047

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Lu, Hua 

G-3042-2014 

 

Chen, Feng 

JQW-8742-2023 

 

Wu, Jiale 

JQV-3750-2023 

 

Gong, Yongkang 

F-1335-2017 

0000-0002-2830-4423 

 

ISSN: 1559-128X

eISSN: 2155-3165

 


 

Record 54 of 209

Title: High-power picosecond terahertz-wave generation in photonic crystal fiber via four-wave mixing

Author(s): Wu, HH (Wu, Huihui); Liu, HJ (Liu, Hongjun); Huang, N (Huang, Nan); Sun, QB (Sun, Qibing); Wen, J (Wen, Jin)

Source: APPLIED OPTICS  Volume: 50  Issue: 27  Pages: 5338-5343  DOI: 10.1364/AO.50.005338  Published: SEP 20 2011  

Abstract: We demonstrate picosecond terahertz (THz)-wave generation via four-wave mixing in an octagonal photonic crystal fiber (O-PCF). Perfect phase-matching is obtained at the pump wavelength of 1.55 mu m and a generation scheme is proposed. Using this method, THz waves can be generated in the frequency range of 7.07-7.74 THz. Moreover, peak power of 2.55 W, average power of 1.53 mW, and peak conversion efficiency of more than -66.65 dB at 7.42 THz in a 6.25 cm long fiber are realized with a pump peak power of 2kW. (C) 2011 Optical Society of America

Accession Number: WOS:000295028000018

PubMed ID: 21947055

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Liu, Hongjun 

D-2541-2016 

 

Huang, Nan 

IYI-9977-2023 

 

 

ISSN: 1559-128X

eISSN: 2155-3165

 


 

Record 55 of 209

Title: Wideband ultraflat slow light with large group index in a W1 photonic crystal waveguide

Author(s): Liang, J (Liang, Jian); Ren, LY (Ren, Li-Yong); Yun, MJ (Yun, Mao-Jin); Han, X (Han, Xu); Wang, XJ (Wang, Xing-Jun)

Source: JOURNAL OF APPLIED PHYSICS  Volume: 110  Issue: 6  Article Number: 063103  DOI: 10.1063/1.3634074  Published: SEP 15 2011  

Abstract: We demonstrate that slow light with large group-index, wideband, and low dispersion can be realized in a silicon-on-insulator W1-type photonic crystal waveguide by simply shifting the first two rows of air-holes adjacent to the waveguide to specific directions. Keeping the group index at 46, 60, 86, 111, 151, and 233, respectively, while restricting its variation within a +/- 10% range, we accordingly obtain a slow light bandwidth of 9.0 nm, 6.7 nm, 4.6 nm, 3.3 nm, 2.4 nm, and 1.7 nm, respectively. The normalized delay-bandwidth product keeps around 0.25 for all cases. Moreover, we obtain ultraflat slow light with bandwidths over 3.0 nm, 2.4 nm, 1.6 nm, 1.3 nm, 0.93 nm, and 0.6 nm, respectively, where the group index variation is in a range of only +/- 0.8%. Numerical simulations are performed, utilizing the 2D plane wave expansion method and the finite-difference time-domain method. (C) 2011 American Institute of Physics. [doi:10.1063/1.3634074]

Accession Number: WOS:000295619300004

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

liang, jian 

HNI-8846-2023 

 

ren, li yong 

F-5518-2014 

0000-0002-7547-7511 

 

ISSN: 0021-8979

eISSN: 1089-7550

 


 

Record 56 of 209

Title: An adaptive OPD and dislocation prediction used characteristic of interference pattern for interference hyperspectral image compression

Author(s): Wen, J (Wen, Jia); Ma, CW (Ma, Caiwen); Shui, PL (Shui, Penglang)

Source: OPTICS COMMUNICATIONS  Volume: 284  Issue: 20  Pages: 4903-4909  DOI: 10.1016/j.optcom.2011.06.061  Published: SEP 15 2011  

Abstract: According to the imaging principle and characteristic of LASIS (Large Aperture Static Interference Imaging Spectrometer), we discovered that the 3D (three dimensional) image sequences formed by different interference pattern frames, which were formed in the imaging process of LASIS Interference hyperspectral image, had much stronger correlation than the original interference hyperspectral image sequences, either in 2D (two dimensional) spatial domain or in the spectral domain. We put this characteristic into image compression and proposed an adaptive OPD (optical path difference) and dislocation prediction algorithm for interference hyperspectral image compression. Compared the new algorithm proposed in this paper with Dual-Direction Prediction [1] proposed in 2009, lots of experimental results showed that the prediction error entropy of the new algorithm was much smaller. In the prediction step of lifting wavelet transform, this characteristic would also reduce the entropy of coefficients in high frequency significantly, which would be more advantageous for quantification coding [2]. (C) 2011 Elsevier B.V. All rights reserved.

Accession Number: WOS:000294579200009

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Shui, Peng-Lang 

 

0000-0002-5921-5255 

 

ISSN: 0030-4018

eISSN: 1873-0310

 


 

Record 57 of 209

Title: Perfect absorber supported by optical Tamm states in plasmonic waveguide

Author(s): Gong, YK (Gong, Yongkang); Liu, XM (Liu, Xueming); Lu, H (Lu, Hua); Wang, LR (Wang, Leiran); Wang, GX (Wang, Guoxi)

Source: OPTICS EXPRESS  Volume: 19  Issue: 19  Pages: 18393-18398  DOI: 10.1364/OE.19.018393  Published: SEP 12 2011  

Abstract: Based on a two-dimensional plasmonic metal-dielectric-metal (MDM) waveguide with a thin metallic layer and a dielectric photonic crystal in the core, a novel absorber at visual and near-infrared frequencies is presented. The absorber spectra and filed distributions are investigated by the transfer-matrix-method and the finite-difference time-domain method. Numerical results show that attributing to excitation of the optical Tamm states in the MDM waveguide core, the optical wave is trapped in the proposed structure without reflection and transmission, leading to perfect absorption as high as 0.991. The proposed absorber can find useful application in all-optical integrated photonic circuits. (C) 2011 Optical Society of America

Accession Number: WOS:000294781200071

PubMed ID: 21935207

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Lu, Hua 

G-3042-2014 

 

Wu, Jiale 

JQV-3750-2023 

 

Chen, Feng 

JQW-8742-2023 

 

Gong, Yongkang 

F-1335-2017 

0000-0002-2830-4423 

 

ISSN: 1094-4087

 


 

Record 58 of 209

Title: Error-free OTDM demultiplexer using the supercontinuum spectrum-slicing induced clock signal

Author(s): Feng, H (Feng, Huan); Zhao, W (Zhao, Wei); Yan, SY (Yan, Shuangyi); Xie, XP (Xie, Xiaoping)

Source: OPTICS COMMUNICATIONS  Volume: 284  Issue: 19  Pages: 4327-4330  DOI: 10.1016/j.optcom.2011.05.027  Published: SEP 1 2011  

Abstract: We experimentally demonstrate an 80-Gb/s optical time-division multiplexing (OTDM) demultiplexing system based on the cross-phase modulation (XPM) effect in high-nonlinearity fibers. The message carried by OTDM signal is loaded onto the probe signal by sampling the OTDM packet with a 10-GHz stable and controllable clock pulse train. The clock signal with similar to 11 ps pulse width is achieved by employing supercontinuum spectrum-slicing technique, which is distinct from that based on mode-locked lasers. The demultiplexed signal is obtained by filtering out the XPM-induced spectral sidebands of the probe signal. The OTDM demultiplexer based on this novel technique shows excellent performances and contributes to a bit error rate of as low as 10(-9). (C) 2011 Elsevier B.V. All rights reserved.

Accession Number: WOS:000294374700018

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Yan, Shuangyi 

H-7233-2019 

0000-0002-5021-2840 

zhao, wei 

IQS-1144-2023 

 

Xie, Xiaoping 

HHY-7662-2022 

0000-0001-5592-177X 

Zhang, wen 

ITT-1192-2023 

 

 

ISSN: 0030-4018

 


 

Record 59 of 209

Title: A NOVEL METRIC BASED ON MCA FOR IMAGE QUALITY

Author(s): He, LH (He, Lihuo); Lu, W (Lu, Wen); Gao, XB (Gao, Xinbo); Tao, DC (Tao, Dacheng); Li, XL (Li, Xuelong)

Source: INTERNATIONAL JOURNAL OF WAVELETS MULTIRESOLUTION AND INFORMATION PROCESSING  Volume: 9  Issue: 5  Pages: 743-757  DOI: 10.1142/S0219691311004298  Published: SEP 2011  

Abstract: Considering that the Human Visual System (HVS) has different perceptual characteristics for different morphological components, a novel image quality metric is proposed by incorporating Morphological Component Analysis (MCA) and HVS, which is capable of assessing the image with different kinds of distortion. Firstly, reference and distorted images are decomposed into linearly combined texture and cartoon components by MCA respectively. Then these components are turned into perceptual features by Just Noticeable Difference (JND) which integrates masking features, luminance adaptation and Contrast Sensitive Function (CSF). Finally, the discrimination between reference and distorted images perceptual features is quantified using a pooling strategy before the final image quality is obtained. Experimental results demonstrate that the performance of the proposed prevails over some existing methods on LIVE database II.

Accession Number: WOS:000296623700004

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Li, Xuelong 

ABF-3381-2020 

 

li, xiang 

GWM-6319-2022 

 

Tao, Dacheng 

A-5449-2012 

0000-0001-7225-5449 

He, Lihuo 

B-4237-2012 

 

Li, Xuelong 

Z-3785-2019 

 

Li, Xuelong 

 

0000-0002-0019-4197 

 

ISSN: 0219-6913

eISSN: 1793-690X

 


 

Record 60 of 209

Title: Image quality assessment based on S-CIELAB model

Author(s): He, LH (He, Lihuo); Gao, XB (Gao, Xinbo); Lu, W (Lu, Wen); Li, XL (Li, Xuelong); Tao, DC (Tao, Dacheng)

Source: SIGNAL IMAGE AND VIDEO PROCESSING  Volume: 5  Issue: 3  Pages: 283-290  DOI: 10.1007/s11760-010-0200-x  Published: SEP 2011  

Abstract: This paper proposes a new image quality assessment framework which is based on color perceptual model. By analyzing the shortages of the existing image quality assessment methods and combining the color perceptual model, the general framework of color image quality assessment based on the S-CIELAB color space is presented. The S-CIELAB color model, a spatial extension of CIELAB, has an excellent performance for mimicking the perceptual processing of human color vision. This paper incorporates excellent color perceptual characteristics model with the geometrical distortion measurement to assess the image quality. First, the reference and distorted images are transformed into S-CIELAB color perceptual space, and the transformed images are evaluated by existing metric in three color perceptual channels. The fidelity factors of three channels are weighted to obtain the image quality. Experimental results achieved on LIVE database II shows that the proposed methods are in good consistency with human subjective assessment results.

Accession Number: WOS:000294056500003

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Li, Xuelong 

Z-3785-2019 

 

Li, Xuelong 

ABF-3381-2020 

 

li, xiang 

GWM-6319-2022 

 

He, Lihuo 

B-4237-2012 

 

Tao, Dacheng 

A-5449-2012 

0000-0001-7225-5449 

Li, Xuelong 

 

0000-0002-0019-4197 

 

ISSN: 1863-1703

eISSN: 1863-1711

 


 

Record 61 of 209

Title: Tunable third-harmonic generation in a solid-core tellurite glass fiber

Author(s): Lin, AX (Lin, Aoxiang); Ryasnyanskiy, A (Ryasnyanskiy, Aleksandr); Toulouse, J (Toulouse, Jean)

Source: OPTICS LETTERS  Volume: 36  Issue: 17  Pages: 3437-3439  DOI: 10.1364/OL.36.003437  Published: SEP 1 2011  

Abstract: A solid-core tellurite glass fiber with 1.8 dB/m loss at 1.55 mu m was made by using the built-in casting preform fabrication method and rod-in-tube fiber drawing technique. Pumping a 10 cm fiber piece with picosecond pulses of 3-5 x 10(12) W/cm(2), 0.1% of the fundamental power limited by the coherence length of 0.3-5 mu m was converted into visible third-harmonic power tunable over a broad near-IR wavelength ranging from 1500 to 1680 nm. Frequency conversion from the mid-IR to near-IR was found to be even more efficient due to the longer coherence lengths of 12-20 mu m in the wavelength range of 2200-2500 nm. (C) 2011 Optical Society of America

Accession Number: WOS:000294667100045

PubMed ID: 21886236

ISSN: 0146-9592

eISSN: 1539-4794

 


 

Record 62 of 209

Title: DESIGN OF LOW-TIMING-JITTER, STABLE PICOSECOND OPTICAL-PULSE SOURCE USING AN UNCOOLED GAIN-SWITCHED FABRY-PEROT SEMICONDUCTOR LASER WITH EXTERNAL CONTINUOUS-WAVE LIGHT INJECTION

Author(s): Liu, YS (Liu, Yuanshan); Zhang, JG (Zhang, Jian-Guo)

Source: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS  Volume: 53  Issue: 9  Pages: 2100-2105  DOI: 10.1002/mop.26176  Published: SEP 2011  

Abstract: This paper presents the design of a low-timing-jitter, stable picosecond optical-pulse source, which is based on a low-cost, uncooled Fabry-Perot (FP) semiconductor laser in the gain-switching operation. The wavelength of the designed laser can be tuned from 1538 to 1554 nm under the condition of external continuous-wave (CW) light injection. The relationship between injection light power and timing jitter or between injection light power and pulse width of this gain-switched laser is studied experimentally. Our results show that the optical pulses with widths about 28 and 19 ps at the repetition frequencies of 2.5 and 5 GHz, respectively, are produced by an uncooled gain-switched FP semiconductor laser with timing jitter <= 600 fs, when the injection power and wavelength of an external CW light are appropriately chosen. The use of a 500-m dispersion-compensation fiber can easily compress the optical pulses from 26 to 7.7 ps. Moreover, the stability of an uncooled gain-switched FP laser is experimentally investigated, and a stable optical-pulse train at 5 GHz can be feasibly produced over 7 h of continuously working. (C) 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2100-2105, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26176

Accession Number: WOS:000292600900041

ISSN: 0895-2477

eISSN: 1098-2760

 


 

Record 63 of 209

Title: Gaseous ammonia fluorescence probe based on cellulose acetate modified microstructured optical fiber

Author(s): Peng, LR (Peng, Lirong); Yang, XH (Yang, Xinghua); Yuan, LB (Yuan, Libo); Wang, LL (Wang, Lili); Zhao, EM (Zhao, Enming); Tian, FJ (Tian, Fengjun); Liu, YX (Liu, Yanxin)

Source: OPTICS COMMUNICATIONS  Volume: 284  Issue: 19  Pages: 4810-4814  DOI: 10.1016/j.optcom.2011.06.015  Published: SEP 1 2011  

Abstract: In this article, we report a novel fluorescent ammonia gas probe based on microstructured optical fiber (MOF) which is modified with eosin-doped cellulose acetate film. This probe was fabricated by liquid fluxion coating process. Polymer solution doped with eosin was directly inhaled into 18 array holes of MOF and then formed matrix film in them. The sensing properties of the optical fiber sensor to gaseous ammonia at room temperature were investigated. The sensing probe showed different fluorescence intensity at 576 nm to different concentrations of trace ammonia in carrier gas of nitrogen. The response range was 50-400 ppm, with short response time within 500 ms. Furthermore, the response range could be tailored through CTAB co-entrapment process in the sensing film. These test results demonstrated that low cost, simple structured fiber optic sensors for detecting ammonia gas samples could be developed based on MOF. (C) 2011 Elsevier B.V. All rights reserved.

Accession Number: WOS:000294374700105

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Liu, Yan-Xin 

AAI-3572-2021 

0000-0001-5030-2435 

Tian, Fengjun 

 

0000-0002-8457-1913 

 

ISSN: 0030-4018

eISSN: 1873-0310

 


 

Record 64 of 209

Title: Mammographic mass segmentation: Embedding multiple features in vector-valued level set in ambiguous regions

Author(s): Wang, Y (Wang, Ying); Tao, DC (Tao, Dacheng); Gao, XB (Gao, Xinbo); Li, XL (Li, Xuelong); Wang, B (Wang, Bin)

Source: PATTERN RECOGNITION  Volume: 44  Issue: 9  Special Issue: SI  Pages: 1903-1915  DOI: 10.1016/j.patcog.2010.08.002  Published: SEP 2011  

Abstract: Mammographic mass segmentation plays an important role in computer-aided diagnosis systems. It is very challenging because masses are always of low contrast with ambiguous margins, connected with the normal tissues, and of various scales and complex shapes. To effectively detect true boundaries of mass regions, we propose a feature embedded vector-valued contour-based level set method with relaxed shape constraint.
In particular, we initially use the contour-based level set method to obtain the initial boundaries on the smoothed mammogram as the shape constraint. To prevent the contour leaking and meanwhile preserve the radiative characteristics of specific malignant masses, afterward, we relax the obtained shape constraint by analyzing possible valid regions around the initial boundaries. The relaxed shape constraint is then used to design a novel stopping function for subsequent vector-valued level set method. Since texture maps, gradient maps, and the original intensity map can reflect different characteristics of the mammogram, we integrate them together to obtain more accurate segmentation by incorporating the new stopping function into the newly proposed feature embedded vector-valued contour-based level set method.
The experimental results suggest that the proposed feature embedded vector-valued contour-based level set method with relaxed shape constraint can effectively find ambiguous margins of the mass regions. Comparing against existing active contours methods, the new scheme is more effective and robust in detecting complex masses. (C) 2010 Elsevier Ltd. All rights reserved.

Accession Number: WOS:000291834800008

Conference Title: 13th International Conference on Computer Analysis of Images and Patterns

Conference Date: SEP 02-04, 2009

Conference Location: Munster, GERMANY

Conference Sponsors: Univ Munster, Int Assoc Pattern Recognit, Olympus Soft Imaging Solut GmbH, Philips

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Wang, Bin 

M-9701-2019 

0000-0003-1118-3618 

Li, Xuelong 

ABF-3381-2020 

 

Tao, Dacheng 

A-5449-2012 

0000-0001-7225-5449 

zhang, shuai 

IVU-7877-2023 

 

Li, Xuelong 

Z-3785-2019 

 

li, xiang 

GWM-6319-2022 

 

Li, Xuelong 

 

0000-0002-0019-4197 

 

ISSN: 0031-3203

 


 

Record 65 of 209

Title: Influence of the initial chirp on the supercontinuum generation in silicon-on-insulator waveguide

Author(s): Wen, J (Wen, J.); Liu, H (Liu, H.); Huang, N (Huang, N.); Sun, Q (Sun, Q.); Zhao, W (Zhao, W.)

Source: APPLIED PHYSICS B-LASERS AND OPTICS  Volume: 104  Issue: 4  Pages: 867-871  DOI: 10.1007/s00340-011-4496-1  Published: SEP 2011  

Abstract: We propose a practical method to broaden the bandwidth of supercontinuum generated in silicon-on-insulator (SOI) waveguide by controlling the initial chirp of inputting femtosecond pulses, which has the main impact on the initial stage of the spectral broadening caused by the self-phase modulation (SPM) effect. The numerical results show that the bandwidth and flatness of the supercontinuum generated in SOI waveguide are sensitive to the initial chirp of inputting femtosecond pulses, the supercontinuum bandwidth can be remarkably enhanced by inputting positive chirp femtosecond pulses with a decreased propagation distance required by soliton fission, and the maximum bandwidth of supercontinuum can be increased to 1500 nm.

Accession Number: WOS:000295611800019

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Zhang, Cheng 

JAD-2236-2023 

 

 

ISSN: 0946-2171

 


 

Record 66 of 209

Title: InAs/GaSb type-II superlattice grown by MOCVD for long-wavelength infrared detection

Author(s): Xin, LW (Xin, Liwei); Wang, T (Wang, Tao); Yang, J (Yang, Jin); Wang, JW (Wang, Jingwei); Yin, F (Yin, Fei); Hu, YA (Hu, Yanan); Jiao, GH (Jiao, Guohua); Zhang, LC (Zhang, Lichen); Yin, JZ (Yin, Jingzhi); Song, ZY (Song, Zhenyu)

Source: OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS  Volume: 5  Issue: 9  Pages: 1017-1020  Published: SEP 2011  

Abstract: Recently, many characteristics of the InAs/GaSb type-II superlattice(SL) have been investigated. However, little research work has been devoted to the source flux control, which is very important for improving the property of the SL. Based on the technology of metal organic chemical vapor deposition (MOCVD) on GaSb substrate, which has a better cost effectiveness for large-scale production, SL with excellent crystal quality is proposed in this paper. Furthermore, the importance of source flux control is analyzed by comparison of the low-temperature photoluminescence (PL) spectra of the SL grown with a special source flux control and that with a simple source flux control. The x-ray diffraction(XRD) data and the surface morphology obtained by atomic force microscopy(AFM) show that the SL designed by us has smooth surface, and the peak sense wavelength of the SL is around 10 mu m.

Accession Number: WOS:000297637400028

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

YU, Wei 

HTP-9667-2023 

 

Wang, Peiyun 

JVE-1196-2024 

 

Wang, Tao 

K-1644-2013 

0000-0001-5004-160X 

Song, Zhenyu 

IZQ-5625-2023 

 

 

ISSN: 1842-6573

 


 

Record 67 of 209

Title: Auto-compensation of velocity-height ratio for Chang'E-2 satellite CCD stereo camera

Author(s): Xue, B (Xue Bin); Zhao, BC (Zhao BaoChang); Yang, JF (Yang JianFeng); Gao, W (Gao Wei); Qiao, WD (Qiao WeiDong); Ma, XL (Ma XiaoLong); Zhang, B (Zhang Bo); Liu, JH (Liu JiaHang); Zhao, W (Zhao Wei); Jing, JJ (Jing JuanJuan)

Source: SCIENCE CHINA-TECHNOLOGICAL SCIENCES  Volume: 54  Issue: 9  Pages: 2243-2246  DOI: 10.1007/s11431-011-4517-7  Published: SEP 2011  

Abstract: The TDI-CCD imaging method using auto-compensation of velocity-height ratio (VHR) was applied to Chang'E-2 satellite CCD stereo camera. Factors that influence the image quality of the camera were discussed, among which the mismatch error in VHR was found to be the main cause. An auto-compensation scheme for VHR was developed. The validity and effectiveness were proved by the on-orbit high quality images.

Accession Number: WOS:000293539400002

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Yang, Jianfeng 

ABH-1554-2020 

0000-0002-0140-3675 

Liu, Jiahang 

 

0000-0001-5177-8216 

 

ISSN: 1674-7321

 


 

Record 68 of 209

Title: Overall scheme and on-orbit images of Chang'E-2 lunar satellite CCD stereo camera

Author(s): Zhao, BC (Zhao BaoChang); Yang, JF (Yang JianFeng); Wen, DS (Wen DeSheng); Gao, W (Gao Wei); Chang, LY (Chang LingYing); Song, ZX (Song ZongXi); Xue, B (Xue Bin); Zhao, W (Zhao Wei)

Source: SCIENCE CHINA-TECHNOLOGICAL SCIENCES  Volume: 54  Issue: 9  Pages: 2237-2242  DOI: 10.1007/s11431-011-4519-5  Published: SEP 2011  

Abstract: The goals of engineering and scientific missions for Chang'E-2 lunar satellite require high detection sensitivity and large imaging dynamic range for the onboard CCD cameras. The TDI CCD image sensor was adopted for the two linear CCD stereo cameras for the first time in the lunar reconnaissance of the world. The design argumentation is described in this paper. The analysis shows that the imagers meet the mission requirements. The satellite was launched on 1 October 2010 at zero window. The cameras obtained images of 7 m resolution on the 100 km orbit for the first time on 24 October 2010, and operated once again on 27 October 2010 to take stereo images of the Sinus Iridum with the resolution better than 1.5 m. On the near-moon-arc of 15 kmx100 km elliptical orbit, the images are very clear and rich of grey scales, indicating successful completion of the Chang'E-2 engineering mission. At the present the cameras are acquiring the full lunar surface stereo images with 7 m resolution on the 100 km circular orbit to complete their scientific mission.

Accession Number: WOS:000293539400001

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Yang, Jianfeng 

ABH-1554-2020 

0000-0002-0140-3675 

 

ISSN: 1674-7321

eISSN: 1869-1900

 


 

Record 69 of 209

Title: All fiber supercontinuum light source using photonic crystal fibers pumped by nanosecond fiber laser pulses

Author(s): Zhu, SL (Zhu, S. L.); Gao, CX (Gao, C. X.); He, HD (He, H. D.); Feng, L (Feng, L.); Cao, ZY (Cao, Z. Y.)

Source: LASER PHYSICS  Volume: 21  Issue: 9  Pages: 1629-1632  DOI: 10.1134/S1054660X11150412  Published: SEP 2011  

Abstract: A novel compact supercontinuum (SC) source using the single mode photonic crystal fibers (PCF) pumped with an all fiber MOPA fiber laser is demonstrated experimentally. A bandwidth of 700 nm is achieved by operating the pumping fiber laser at a wavelength of 1064 nm, pulse duration of 10 ns, repetition rate of 50 kHz and peak power of 1 kW. The SC generation is initiated through modulation instability (MI) which breakups the nanosecond pump pulses into picosecond or femtosecond pulses, and further broadened through nonlinear effects of PCF.

Accession Number: WOS:000294738500017

ISSN: 1054-660X

 


 

Record 70 of 209

Title: Soliton formation and evolution in passively-mode-locked lasers with ultralong anomalous-dispersion fibers

Author(s): Liu, XM (Liu, Xueming)

Source: PHYSICAL REVIEW A  Volume: 84  Issue: 2  Article Number: 023835  DOI: 10.1103/PhysRevA.84.023835  Published: AUG 19 2011  

Abstract: The soliton formation and evolution are numerically and experimentally investigated in passively-mode-locked lasers where pulses encounter ultralong anomalous-dispersion fibers. The pulse formation and evolution in lasers are determined by two balances, namely, nonlinearity and anomalous-dispersion balance and intracavity filtering and self-amplitude modulation balance. It is numerically found that a higher-energy soliton can be split into identical lower-energy multisolitons with exactly the same physical properties. Simulation results show that the separation of neighboring solitons is variational in the temporal domain. The temporal and spectral characteristics of solitons have large variations throughout the laser cavity, qualitatively distinct from the steady state of conventional solitons. The experimental observations confirm the theoretical predictions.

Accession Number: WOS:000294053200009

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Wu, Jiale 

JQV-3750-2023 

 

 

ISSN: 1050-2947

eISSN: 1094-1622

 


 

Record 71 of 209

Title: Parallel two-step phase-shifting microscopic interferometry based on a cube beamsplitter

Author(s): Gao, P (Gao, Peng); Yao, BL (Yao, Baoli); Min, JW (Min, Junwei); Guo, RL (Guo, Rongli); Zheng, JJ (Zheng, Juanjuan); Ye, T (Ye, Tong)

Source: OPTICS COMMUNICATIONS  Volume: 284  Issue: 18  Pages: 4136-4140  DOI: 10.1016/j.optcom.2011.04.049  Published: AUG 15 2011  

Abstract: Parallel two-step phase-shifting interferometry for microscopy is presented, and the recording condition for generalized two-step phase-shifting interferometry is discussed. A 45 degrees tilted cube beamsplitter enables to replicate the orthogonally linear polarized object and reference waves into two parallel beams, respectively. As a consequence, two interferograms with quadrature phase shift are obtained along the two beams, and phase reconstructed with an improved algorithm. To reconstruct the phase distribution from the two-step phase-shifting interferograms, a certain recording condition should be satisfied. However, the recording condition has not ever been discussed before. In this paper, the recording condition for the two-step phase-shifting interferometry is derived and that is: the intensity of reference wave should be no less than two times object wave intensity. (C) 2011 Elsevier B.V. All rights reserved.

Accession Number: WOS:000292231700005

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Ye, Tong 

ABG-8560-2021 

0000-0003-1017-6969 

min, junwei 

HDO-7763-2022 

0000-0001-7931-9361 

Yao, Baoli 

AAB-4606-2021 

 

Ye, Tong 

A-8251-2010 

0000-0003-1017-6969 

Gao, Peng 

 

0000-0002-5354-3944 

 

ISSN: 0030-4018

eISSN: 1873-0310

 


 

Record 72 of 209

Title: Induced transparency in nanoscale plasmonic resonator systems

Author(s): Lu, H (Lu, Hua); Liu, XM (Liu, Xueming); Mao, D (Mao, Dong); Gong, YK (Gong, Yongkang); Wang, GX (Wang, Guoxi)

Source: OPTICS LETTERS  Volume: 36  Issue: 16  Pages: 3233-3235  DOI: 10.1364/OL.36.003233  Published: AUG 15 2011  

Abstract: An optical effect analogous to electromagnetically induced transparency (EIT) is observed in nanoscale plasmonic resonator systems. The system consists of a slot cavity as well as plasmonic bus and resonant waveguides, where the phase-matching condition of the resonant waveguide is tunable for the generation of an obvious EIT-like coupled resonator-induced transparency effect. A dynamic theory is utilized to exactly analyze the influence of physical parameters on transmission characteristics. The transparency effect induced by coupled resonance may have potential applications for nanoscale optical switching, nanolaser, and slow-light devices in highly integrated optical circuits. (C) 2011 Optical Society of America

Accession Number: WOS:000293890800074

PubMed ID: 21847218

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Wu, Jiale 

JQV-3750-2023 

 

Chen, Feng 

JQW-8742-2023 

 

Lu, Hua 

G-3042-2014 

 

Mao, Dong 

G-5113-2014 

 

Gong, Yongkang 

F-1335-2017 

0000-0002-2830-4423 

 

ISSN: 0146-9592

eISSN: 1539-4794

 


 

Record 73 of 209

Title: Coexistence of unequal pulses in a normal dispersion fiber laser

Author(s): Mao, D (Mao, Dong); Liu, XM (Liu, Xueming); Wang, LR (Wang, Leiran); Lu, H (Lu, Hua); Duan, LN (Duan, Lina)

Source: OPTICS EXPRESS  Volume: 19  Issue: 17  Pages: 16303-16308  DOI: 10.1364/OE.19.016303  Published: AUG 15 2011  

Abstract: We experimentally demonstrate unequal pulses delivered from an erbium-doped fiber (EDF) laser with net-normal dispersion. Two types of pulses with different durations, energies, and spectra coexist in the same ring cavity. The output spectrum exhibits a broadband base that corresponds to the main pulse and a small rectangular lump that corresponds to the additional satellite pulse. With the enhancement of pump power, the intensity of main pulse almost keeps unchanged while the satellite pulse nearly increases linearly. Based on experimental results, it is indicated that two different pulse shaping mechanisms coexist in laser cavity, where the nonlinear polarization rotation (NPR) and spectral filtering (SF) effect contribute to the formation of main pulse and satellite pulse, respectively. (C) 2011 Optical Society of America

Accession Number: WOS:000293894900067

PubMed ID: 21934993

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Mao, Dong 

G-5113-2014 

 

Mao, Dong 

K-6333-2016 

 

Lu, Hua 

G-3042-2014 

 

Wu, Jiale 

JQV-3750-2023 

 

 

ISSN: 1094-4087

 


 

Record 74 of 209

Title: Lossless Data Embedding Using Generalized Statistical Quantity Histogram

Author(s): Gao, XB (Gao, Xinbo); An, LL (An, Lingling); Yuan, Y (Yuan, Yuan); Tao, DC (Tao, Dacheng); Li, XL (Li, Xuelong)

Source: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY  Volume: 21  Issue: 8  Pages: 1061-1070  DOI: 10.1109/TCSVT.2011.2130410  Published: AUG 2011  

Abstract: Histogram-based lossless data embedding (LDE) has been recognized as an effective and efficient way for copyright protection of multimedia. Recently, a LDE method using the statistical quantity histogram has achieved good performance, which utilizes the similarity of the arithmetic average of difference histogram (AADH) to reduce the diversity of images and ensure the stable performance of LDE. However, this method is strongly dependent on some assumptions, which limits its applications in practice. In addition, the capacities of the images with the flat AADH, e. g., texture images, are a little bit low. For this purpose, we develop a novel framework for LDE by incorporating the merits from the generalized statistical quantity histogram (GSQH) and the histogram-based embedding. Algorithmically, we design the GSQH driven LDE framework carefully so that it: 1) utilizes the similarity and sparsity of GSQH to construct an efficient embedding carrier, leading to a general and stable framework; 2) is widely adaptable for different kinds of images, due to the usage of the divide-and-conquer strategy; 3) is scalable for different capacity requirements and avoids the capacity problems caused by the flat histogram distribution; 4) is conditionally robust against JPEG compression under a suitable scale factor; and 5) is secure for copyright protection because of the safe storage and transmission of side information. Thorough experiments over three kinds of images demonstrate the effectiveness of the proposed framework.

Accession Number: WOS:000293749700005

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Yuan, Yuan 

ABB-2379-2020 

 

Li, Xuelong 

ABF-3381-2020 

 

Yuan, Yuan 

GVS-5120-2022 

 

Li, Xuelong 

Z-3785-2019 

 

yuan, Yuan 

ISA-0923-2023 

 

Tao, Dacheng 

A-5449-2012 

0000-0001-7225-5449 

li, xiang 

GWM-6319-2022 

 

Li, Xuelong 

 

0000-0002-0019-4197 

 

ISSN: 1051-8215

eISSN: 1558-2205

 


 

Record 75 of 209

Title: RGB High Brightness LED Modules for Projection Display Application

Author(s): Peng, CH (Peng, Chenhui); Li, XN (Li, Xiaoning); Zhang, P (Zhang, Pu); Xiong, LL (Xiong, Lingling); Liu, XS (Liu, Xingsheng)

Source: JOURNAL OF DISPLAY TECHNOLOGY  Volume: 7  Issue: 8  Pages: 448-453  DOI: 10.1109/JDT.2011.2132693  Published: AUG 2011  

Abstract: Light-emitting diodes (LEDs) have numerous advantages, such as long lifetime, large color gamut, small size, and absence of mercury vapor. In recent years, there has been recognition that high brightness LED could be an alternative light source for projection display application. In this work, dielectric compound parabolic concentrators (CPCs) were designed and optimized for multiple-LED array package for projection display application. The performance of rectangular CPC was studied and compared to theoretical simulations. More than 85% light, emitted by multiple-LED arrays, can be collected by the CPC and transmitted within the designed angle. A rectangular CPC was fabricated as the collector and collimator. The CPC was integrated with multiple-LED array package, and RGB high brightness LED modules with rectangular CPCs were fabricated and their performances were characterized.

Accession Number: WOS:000292160900003

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

peng, chenhui 

Z-2556-2019 

0000-0002-4381-072X 

 

ISSN: 1551-319X

eISSN: 1558-9323

 


 

Record 76 of 209

Title: Nonlinear frequency conversion in bismuth-doped tellurite suspended core fiber

Author(s): Ryasnyanskiy, A (Ryasnyanskiy, Aleksandr); Lin, AX (Lin, Aoxiang); Belwalkar, A (Belwalkar, Amit); Guintrand, C (Guintrand, Cyril); Biaggio, I (Biaggio, Ivan); Toulouse, J (Toulouse, Jean)

Source: OPTICS COMMUNICATIONS  Volume: 284  Issue: 16-17  Pages: 3977-3979  DOI: 10.1016/j.optcom.2011.04.019  Published: AUG 1 2011  

Abstract: We have developed a new kind of tellurite glass with composition 70.5TeO(2)-12ZnO-10Na(2)O-7.5Bi(2)O(3) by conventional melting-quenching techniques. A suspended-core fiber (SCF) with a triangular-shaped core (similar to 2.9 mu m) has been drawn from an extruded perform. Several nonlinear frequency conversion processes are being demonstrated, which point to the potential of such a fiber. (C) 2011 Elsevier B.V. All rights reserved.

Accession Number: WOS:000291920000026

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Lin, Aoxiang 

C-9978-2009 

 

Biaggio, Ivan 

 

0000-0003-4145-9486 

 

ISSN: 0030-4018

eISSN: 1873-0310

 


 

Record 77 of 209

Title: Some observations on plasma-assisted combustion enhancement using dielectric barrier discharges

Author(s): Tang, J (Tang, Jie); Zhao, W (Zhao, Wei); Duan, YX (Duan, Yixiang)

Source: PLASMA SOURCES SCIENCE & TECHNOLOGY  Volume: 20  Issue: 4  Article Number: 045009  DOI: 10.1088/0963-0252/20/4/045009  Published: AUG 2011  

Abstract: We explore an effective way to promote propane combustion by applying a plasma discharge for efficiency enhancement. A coaxial-cylinder, dielectric barrier discharge is used to activate propane and air before they are mixed with each other and ignited for combustion. The characteristics of the combustion flame are well studied and evaluated by varying various operational parameters. It is found that the combustion process can be enhanced by applying a plasma on either the propane or air stream, and the combustion stability is found to be somewhat sensitive to the lean burning conditions and confined to a relatively narrow operating window. The temperature and spectrum of the flame in the main combustion zone are investigated with a 4 W plasma in the on or off state. The main components are identified, and the possible physical and chemical reaction mechanisms are discussed. A comparative analysis of these spectra and temperatures obtained in the main flame suggests that the energy generated from the 4 W plasma is partially used to heat the reaction gases in the flame, and another part of the energy is used to increase the luminosity, especially for activation of air. We also observe that combustion of high flow rate propane and/or air requires more discharge energy density under certain conditions. A comparison of combustion enhancement through different activation methods in flame blowout tests shows that reactive species derived from activation of air play a more critical role in the blowout limit of propane combustion flame than those generated by activation of propane at low equivalence ratio and propane flow.

Accession Number: WOS:000295829800011

ISSN: 0963-0252

 


 

Record 78 of 209

Title: Bessel-Gaussian electron beams of cylindrically symmetric spin polarization

Author(s): Wang, Y (Wang, Yan); Li, CF (Li, Chun-Fang)

Source: EPL  Volume: 95  Issue: 4  Article Number: 44001  DOI: 10.1209/0295-5075/95/44001  Published: AUG 2011  

Abstract: Bessel-Gaussian cylindrically symmetric electron beams in spin polarization are reported for the first time. They are shown to be the eigenstates of total angular momentum in the z-direction. But they are neither the eigenstates of spin nor the eigenstates of orbital angular momentum in that direction. Copyright (C) EPLA, 2011

Accession Number: WOS:000293857200010

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Li, Chun-Fang 

D-2349-2012 

 

Li, Chun-Fang 

 

0000-0001-6897-8097 

 

ISSN: 0295-5075

 


 

Record 79 of 209

Title: Hyperspectral Image Compression Technology Research Based on EZW

Author(s): Wei, JX (Wei Jun-xia); Xiangli, B (Xiangli Bin); Duan, XF (Duan Xiao-feng); Xu, ZH (Xu Zhao-hui); Xue, LJ (Xue Li-jun)

Source: SPECTROSCOPY AND SPECTRAL ANALYSIS  Volume: 31  Issue: 8  Pages: 2283-2286  DOI: 10.3964/j.issn.1000-0593(2011)08-2283-04  Published: AUG 2011  

Abstract: Along with the development of hyperspectral remote sensing technology, hyperspectral imaging technology has been applied in the aspect of aviation and spaceflight, which is different from multispectral imaging, and with the band width of nanoscale spectral imaging the target continuously, the image resolution is very high. However, with the increasing number of band, spectral data quantity will be more and more, and these data storage and transmission is the problem that the authors must face. Along with the development of wavelet compression technology, in field of image compression, many people adopted and improved EZW, the present paper used the method in hyperspectral spatial dimension compression, but does not involved the spectrum dimension compression. From hyperspectral image compression reconstruction results, whether from the peak signal-to-noise ratio (PSNR) and spectral curve or from the subjective comparison of source and reconstruction image, the effect is well. If the first compression of image from spectrum dimension is made, then compression on space dimension, the authors believe the effect will be better.

Accession Number: WOS:000293681300060

PubMed ID: 22007434

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Xu, Zhaohui 

HNP-4811-2023 

 

 

ISSN: 1000-0593

 


 

Record 80 of 209

Title: Ultrawide tunable femtosecond optical parametric oscillator around 1.5 μm based on high nonlinear photonic crystal fiber

Author(s): Wen, J (Wen, Jin); Liu, HJ (Liu, Hongjun); Huang, N (Huang, Nan); Sun, QB (Sun, Qibing); Long, HB (Long, Hanbo)

Source: OPTICAL ENGINEERING  Volume: 50  Issue: 8  Article Number: 085001  DOI: 10.1117/1.3606497  Published: AUG 2011  

Abstract: The modulation instability and the phase-matching condition around the zero dispersion wavelength of the high nonlinear photonic crystal fiber (PCF) is numerically analyzed and simulated. The ultrawide tunable range can be obtained from the fiber optical parametric oscillator and the ultrashort pulse can be generated through choosing the parameters of dispersion coefficient, nonlinear coefficient, and pump power appropriately. The numerical simulation results show that a tunable range as wide as 318 nm has been obtained from the femtosecond PCF optical parametric oscillator, around 1.5 mu m. C (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [ DOI: 10.1117/1.3606497]

Accession Number: WOS:000294306500028

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Liu, Hongjun 

D-2541-2016 

 

Huang, Nan 

IYI-9977-2023 

 

 

ISSN: 0091-3286

 


 

Record 81 of 209

Title: All-optical 40 Gb/s wavelength conversion using hybrid SOI-based MZI and SOAs configuration

Author(s): Wu, JW (Wu, Jian-Wei); Lee, HS (Lee, Hyun-Shik); Lee, EH (Lee, El-Hang)

Source: OPTICS COMMUNICATIONS  Volume: 284  Issue: 16-17  Pages: 4000-4006  DOI: 10.1016/j.optcom.2011.04.045  Published: AUG 1 2011  

Abstract: In this paper, we present a compact combination of silicon-based Mach-Zehnder interferometer (MZI) and semiconductor optical amplifiers (SOAs) to perform all-optical return to zero (RZ)-to-RZ and non-return to zero (NRZ) wavelength conversions at a bit rate of 40 Gb/s. Using the proposed theoretical project, the attractive issue is that converted signals with inverted and noninverted formats can be simultaneously achieved at the same target wavelength. Moreover, both extinction ratio and eye-opening ratio of the converted RZ and NRZ signals can be significantly optimized by judiciously adjusting the system parameters and initial conditions. (C) 2011 Elsevier B.V. All rights reserved.

Accession Number: WOS:000291920000031

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Wu, Jian 

AAU-5221-2020 

0000-0001-9933-7364 

Wu, Jian 

AAU-5221-2020 

0000-0002-3394-1507 

 

ISSN: 0030-4018

eISSN: 1873-0310

 


 

Record 82 of 209

Title: Secondary optical lens designed in the method of source-target mapping

Author(s): Wang, GZ (Wang, Guangzhen); Wang, LL (Wang, Lili); Li, L (Li, Lin); Wang, DD (Wang, Doudou); Zhang, YJ (Zhang, Yajun)

Source: APPLIED OPTICS  Volume: 50  Issue: 21  Pages: 4031-4036  DOI: 10.1364/AO.50.004031  Published: JUL 20 2011  

Abstract: A secondary optical lens was designed and investigated in three-dimensional (3D) space, which was far more accurate than a two-dimensional space in far-field lighting. The shape of the lens surface was from numerical solutions to a group of equations based on source-target mapping; calculating time was only 1: 6 s. Neglecting absorption and scattering loss, the main results show that, for circular lighting, light efficiency can reach as high as 95%, and uniformity, which is the ratio of the minimum illuminance to average illuminance, is 92.2%. For rectangular lighting, light efficiency can reach 83.6% and uniformity can reach 66.7%. Performance of lenses under different parameters was studied to provide direct references for production and application. (c) 2011 Optical Society of America

Accession Number: WOS:000292970600036

PubMed ID: 21772388

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Li, Lin 

ABH-1588-2021 

0000-0002-1970-1478 

Wang, lingyu 

JLM-2013-2023 

 

liu, xiao 

HMD-7454-2023 

 

 

ISSN: 1559-128X

eISSN: 2155-3165

 


 

Record 83 of 209

Title: A Gradient Anodic Oxidation Method for Treating Polyacrylonitrile-Based High-Modulus Carbon Fibers

Author(s): Hou, YP (Hou, Yongping); Sun, TQ (Sun, Tongqing); Wang, HJ (Wang, Haojing)

Source: JOURNAL OF APPLIED POLYMER SCIENCE  Volume: 121  Issue: 2  Pages: 1059-1066  DOI: 10.1002/app.33761  Published: JUL 15 2011  

Abstract: We describe a gradient anodic oxidation method. Polyacrylonitrile-based high-modulus carbon fibers were treated by the conventional and gradient anodic oxidation methods. The results show that the carbon fibers treated by the gradient method possessed a more stable tensile strength, larger NaOH uptake, shallower striations, flatter fracture surface of composites, and better interlaminar shear strength compared to those treated by the conventional method. This indicated that the gradient method was more effective in restricting the etching reaction and improving the adhesion between the carbon fibers and matrix, and we give a suggested explanation of the mechanisms. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 121: 1059-1066, 2011

Accession Number: WOS:000289355500056

ISSN: 0021-8995

eISSN: 1097-4628

 


 

Record 84 of 209

Title: High average power, strictly all-fiber supercontinuum source with good beam quality

Author(s): Hu, XH (Hu, Xiaohong); Zhang, W (Zhang, Wei); Yang, Z (Yang, Zhi); Wang, YS (Wang, Yishan); Zhao, W (Zhao, Wei); Li, XH (Li, Xiaohui); Wang, HS (Wang, Hushan); Li, C (Li, Cheng); Shen, DY (Shen, Deyuan)

Source: OPTICS LETTERS  Volume: 36  Issue: 14  Pages: 2659-2661  DOI: 10.1364/OL.36.002659  Published: JUL 15 2011  

Abstract: A 1.05 mu m picosecond pulsed fiber master oscillator power amplifier system delivering an average power of over 100 W was used to pump a 5 m long commercially available photonic crystal fiber and a 49.8 W supercontinuum spanning from around 500 nm to above 1700 nm was generated. Strictly single mode operation of the all-fiber supercontinuum source across the whole spectral range was verified through the quantitative measurement of the beam quality. (C) 2011 Optical Society of America

Accession Number: WOS:000293347000020

PubMed ID: 21765500

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Li, Chenglong 

AAH-4234-2019 

 

lin, qing 

JTU-4293-2023 

 

chen, si 

JPK-4258-2023 

 

Li, Xiaohui 

J-9580-2012 

0000-0002-5600-3820 

 

ISSN: 0146-9592

 


 

Record 85 of 209

Title: Influences of the thickness, misalignment, and dispersion of the Savart polariscope on the optical path difference and spectral resolution in the polarization interference imaging spectrometer

Author(s): Zhang, CM (Zhang, Chunmin); Zhao, JK (Zhao, Jianke); Sun, Y (Sun, Yao)

Source: APPLIED OPTICS  Volume: 50  Issue: 20  Pages: 3497-3504  DOI: 10.1364/AO.50.003497  Published: JUL 10 2011  

Abstract: After reviewing the spectrum-dividing principle of the Savart polariscope (SP) in the polarization interference imaging spectrometer (PIIS) that we developed, we analyze the influences of the thickness, misalignment, and dispersion of the SP on the optical path difference (OPD). The theoretical expression of the OPD for the misalignment of the SP optical axis is deduced, and the OPD is analyzed when the incident plane is parallel, at 45 degrees, or orthogonal to the principal section of the left plate of the SP. The selective thickness of the single Savart plate is analyzed when it is placed at the ideal and misalignment positions. The influence of dispersion of the SP on the OPD is analyzed when the misalignment error is +/- 1'. The relationships between the OPD and wavelength are simulated and validated with experiments. This work can provide theoretical and practical guidance for the design, calibration, modulation, innovation, experiment, and engineering of the PIIS. (C) 2011 Optical Society of America

Accession Number: WOS:000293069000016

PubMed ID: 21743559

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Zhang, Chun 

GRE-8915-2022 

 

zhang, chunmei 

IUQ-7038-2023 

 

 

ISSN: 1559-128X

eISSN: 2155-3165

 


 

Record 86 of 209

Title: Enhancement of transmission efficiency of nanoplasmonic wavelength demultiplexer based on channel drop filters and reflection nanocavities

Author(s): Lu, H (Lu, Hua); Liu, XM (Liu, Xueming); Gong, YK (Gong, Yongkang); Mao, D (Mao, Dong); Wang, LR (Wang, Leiran)

Source: OPTICS EXPRESS  Volume: 19  Issue: 14  Pages: 12885-12890  DOI: 10.1364/OE.19.012885  Published: JUL 4 2011  

Abstract: We propose and numerically investigate a novel kind of nanoscale plasmonic wavelength demultiplexing (WDM) structure based on channel drop filters in metal-insulator-metal waveguide with reflection nanocavities. By using finite-difference time-domain simulations, it is found that the transmission efficiency of the channel drop filter can be significantly enhanced by selecting the proper distance between the drop and reflection cavities. The result can be exactly analyzed by the temporal coupled-mode theory. According to this principle, a nanoscale triple-wavelength demultiplexer with high drop efficiencies is designed. The proposed structure can find more applications for the ultra-compact WDM systems in highly integrated optical circuits. (C) 2011 Optical Society of America

Accession Number: WOS:000292876500048

PubMed ID: 21747440

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Mao, Dong 

G-5113-2014 

 

Lu, Hua 

G-3042-2014 

 

Wu, Jiale 

JQV-3750-2023 

 

Gong, Yongkang 

F-1335-2017 

0000-0002-2830-4423 

 

ISSN: 1094-4087

 


 

Record 87 of 209

Title: Experimental study on the imaging of the squeezed state light at 1064 nm

Author(s): Chen, L (Chen, L.); Bi, SW (Bi, S. W.); Lu, BZ (Lu, B. Z.)

Source: LASER PHYSICS  Volume: 21  Issue: 7  Pages: 1202-1207  DOI: 10.1134/S1054660X11130056  Published: JUL 2011  

Abstract: Stable, low noise, infrared squeezed state tight at 1064 nm is generated by utilizing optical parametric down-conversion (OPDC) technique based on periodically poled KTiOPO4 in a optical parametric amplifier (OPA) resonator. A non-classical noise reduction of 2.58 dB below the shot noise is observed through balanced homodyne detection. The squeezed state light is used to set up an imaging system for high-resolution imaging, and it is found that the resolution of image based on the amplitude-squeezed light is 1.26 times larger than that of infrared coherent light under the same intensity. The experimental results indicate that squeezed light is an important non-classical light, which can overcome the coherent laser shot-noise, the classical diffraction limit and limit of quantum noise.

Accession Number: WOS:000292463900014

ISSN: 1054-660X

eISSN: 1555-6611

 


 

Record 88 of 209

Title: Research on Endmember Extraction Algorithm Based on Spectral Classification

Author(s): Gao, XH (Gao Xiao-hui); Xiangli, B (Xiangli Bin); Wei, RY (Wei Ru-yi); Lü, QB (Lue Qun-bo); Wei, JX (Wei Jun-xia)

Source: SPECTROSCOPY AND SPECTRAL ANALYSIS  Volume: 31  Issue: 7  Pages: 1995-1998  DOI: 10.3964/j.issn.1000-0593(2011)07-1995-04  Published: JUL 2011  

Abstract: Spectral unmixing is an important task for data processing of hyperspectral remote sensing, which is comprised of extracting the pure spectra (endmember) and calculating the abundance value of pure spectra. The most efficient endmember extracting algorithms (EEAs) is designed based on convexity geometry such as pure pixel index (PPI), N-finder algorithm (N-FINDR). Most EEAs choose pure spectra from all pixels of an image so that they have disadvantages like slow processing speed and poor precision. Partial algorithms need reducing the spectral dimension, which results in the difficulty in small target identification. This paper proposed an algorithm that classifies the hyperspetral image into some classes with homogeneous spectra and considers the mean spectra of a class as standard spectra for the class, then extracts pure spectrum from all standard spectra of classes. It reduces computation and the effect of system error, enhancing the speed and precision of endmember extraction. Using the least squares with constraints on spectral extraction and spectral unmixing, by controlling the band average value of the maximum spectral redundant allowance to control the number of endmembers, does not need to reduce the spectral dimension and predetermine the number of endmembers, so compared to N-finder algorithm, such algorithm is more rational.

Accession Number: WOS:000292575600057

PubMed ID: 21942068

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

GAO, XIAO 

JED-3257-2023 

 

 

ISSN: 1000-0593

 


 

Record 89 of 209

Title: All-optical multicasting based on multi-pump four-wave mixing in photonic crystal fiber

Author(s): Hui, ZQ (Hui Zhan-Qiang); Zhang, JG (Zhang Jian-Guo)

Source: ACTA PHYSICA SINICA  Volume: 60  Issue: 7  Article Number: 074220  DOI: 10.7498/aps.60.074220  Published: JUL 2011  

Abstract: All-optical multicasting is a key technology of future transparent photonic network, and in this paper it is presented and experimentally demonstrated based on four-wave mixing (FWM) with multi-frequency pump in 100 m dispersion flattened highly nonlinear photon crystal fiber (HNL-PCF). A signal together with double orthogonal pumps is input into the PCF, and four idlers at new frequencies can be generated through degenerate multi-frequency pump FWM processes, which carry the same data information as the input signal and then a 4 x 10 Gbit/s wavelength multicasting has been obtained with a tunable operation wavelength range of 35.2 nm and total channel span of 4.4THz. The optimal conversion efficiency and the optimal Q factor are -22 dB and 5.3, respectively. The system is transparent to both bit rate and modulation format. The advantage of this scheme consists in the ability of bandwidth, and the multicasting channel scalable due to dispersion flattening of PCF is used. Furthermore, it is all optical fiber, compact and robust, which makes it more competitive an well as easily accessible for the uses in practical optical communication systems.

Accession Number: WOS:000293366300056

ISSN: 1000-3290

 


 

Record 90 of 209

Title: Analysis of nanoplasmonic wavelength demultiplexing based on metal-insulator-metal waveguides

Author(s): Lu, H (Lu, Hua); Liu, XM (Liu, Xueming); Gong, YK (Gong, Yongkang); Mao, D (Mao, Dong); Wang, GX (Wang, Guoxi)

Source: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS  Volume: 28  Issue: 7  Pages: 1616-1621  DOI: 10.1364/JOSAB.28.001616  Published: JUL 2011  

Abstract: Nanoplasmonic wavelength demultiplexing (WDM) structures based on metal-insulator-metal waveguides are designed and investigated numerically. The WDM structures possess a series of resonator-based channel drop filters near a bus waveguide. The demultiplexing wavelength of each channel can be tuned by adjusting the geometrical parameters and refractive index of the resonator. The numerical results based on the finite-difference time-domain method can be accurately explained by the resonant theory. Meanwhile, the transmission characteristics of the drop waveguide are influenced by the coupling distance between the resonator and drop/bus waveguides, which can be exactly analyzed by the temporal coupled-mode theory. Additionally, it is found that the drop efficiencies can be improved by a factor of more than 1.8 when a reflection feedback is introduced in the bus waveguide. (c) 2011 Optical Society of America

Accession Number: WOS:000292457900006

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Mao, Dong 

G-5113-2014 

 

Chen, Feng 

JQW-8742-2023 

 

Wu, Jiale 

JQV-3750-2023 

 

Lu, Hua 

G-3042-2014 

 

Gong, Yongkang 

F-1335-2017 

0000-0002-2830-4423 

 

ISSN: 0740-3224

eISSN: 1520-8540

 


 

Record 91 of 209

Title: Advance in Imaging Spectropolarimeter

Author(s): Wang, XQ (Wang Xin-quan); Xiangli, B (Xiangli Bin); Huang, M (Huang Min); Hu, L (Hu Liang); Zhou, JS (Zhou Jin-song); Jing, JJ (Jing Juan-juan)

Source: SPECTROSCOPY AND SPECTRAL ANALYSIS  Volume: 31  Issue: 7  Pages: 1968-1974  DOI: 10.3964/j.issn.1000-0593(2011)07-1968-07  Published: JUL 2011  

Abstract: Imaging spectropolarimeter (ISP) is a type of novel photoelectric sensor which integrated the functions of imaging, spectrometry and polarimetry. In the present paper, the concept of the ISP is introduced, and the advances in ISP at home and abroad in recent years is reviewed. The principles of ISPs based on novel devices, such as acousto-optic tunable filter (AOTF) and liquid crystal tunable filter (LCTF), are illustrated. In addition, the principles of ISPs developed by adding polarized components to the dispersing-type imaging spectrometer, spatially modulated Fourier transform imaging spectrometer, and computer tomography imaging spectrometer are introduced. Moreover, the trends of ISP are discussed too.

Accession Number: WOS:000292575600052

PubMed ID: 21942063

ISSN: 1000-0593

 


 

Record 92 of 209

Title: Study and Simulation of the Intensity Modulation-Fourier Transform Spectropolarimeter

Author(s): Wang, XQ (Wang Xin-quan); Xiangli, B (Xiangli Bin); Huang, M (Huang Min); Hu, L (Hu Liang); Jing, JJ (Jing Juan-juan)

Source: SPECTROSCOPY AND SPECTRAL ANALYSIS  Volume: 31  Issue: 7  Pages: 1980-1984  DOI: 10.3964/j.issn.1000-0593(2011)07-1980-05  Published: JUL 2011  

Abstract: Intensity modulation-Fourier transform spectropolarimetry (IMFTSP) is a novel technology that combines the intensity modulation spectropolarimetry and Fourier transform spectroscopy. The IMFTSP can obtain full Stokes spectropolarimetric parameters simultaneously, and maintains the throughput (Jacquinot) and multiplex (Fellgett) advantages. Yet aside from this, the IMFTSP has the advantage of reducing the complexity of data processing. The data collecting and spectropolarimetric parameters reconstruction processes were analyzed theoretically in this paper, the theoretical formulas are presented, and a whole process mathematical simulation for the IMFTSP system is introduced. The theory analysis and simulation results proved the feasibility of the IMFTSP.

Accession Number: WOS:000292575600054

PubMed ID: 21942065

ISSN: 1000-0593

 


 

Record 93 of 209

Title: Generation of rotating intensity blades by superposing optical vortex beams

Author(s): Yang, DX (Yang, Dexing); Zhao, JH (Zhao, Jinhu); Zhao, T (Zhao, Teng); Kong, LC (Kong, Lingchen)

Source: OPTICS COMMUNICATIONS  Volume: 284  Issue: 14  Pages: 3597-3600  DOI: 10.1016/j.optcom.2011.03.075  Published: JUL 1 2011  

Abstract: A kind of optical beam with controllable rotating intensity blades is generated by coaxially superposing two optical vortex beams with frequency difference (Delta omega), different topological charges (m(1) and m(2)) and equal amplitude. It is shown theoretically that the number of the blades is determined by the subtraction of topological charges (m(1) - m(2)) and the angular velocity of the rotating pattern is equal to Delta omega/(m(1) - m(2)). In our experiment, the rotating beams were generated by two optical vortex beams with opposite topological charges, where the frequency difference is acquired by a rotating plate glass. The results are quite in accordance with the simulations. (c) 2011 Elsevier B.V. All rights reserved.

Accession Number: WOS:000291179300020

ISSN: 0030-4018

 


 

Record 94 of 209

Title: Nonparaxial propagation of vectorial hollow Gaussian beams diffracted at an annular aperture

Author(s): Yang, YJ (Yang, Yuanjie); Li, XF (Li, Xiaofeng); Duan, KL (Duan, Kailiang)

Source: OPTICAL ENGINEERING  Volume: 50  Issue: 7  Article Number: 078001  DOI: 10.1117/1.3595864  Published: JUL 2011  

Abstract: Based on the vectorial Raleigh-Sommerfeld diffraction integral, an analytical propagation equation of vectorial nonparaxial hollow Gaussian beams (HGBs) through an annular aperture is derived. The corresponding closed-forms for a circular aperture, a circular black screen, and unapertured case are given as special cases of the general results. The typical numerical examples are given to illustrate our analytical results. It is shown that the f parameter plays an important role in determining the nonparaxiality of vectorial apertured HGBs. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.3595864]

Accession Number: WOS:000293164700066

ISSN: 0091-3286

 


 

Record 95 of 209

Title: Dependence of the stability of organic light-emitting diodes on driving mode

Author(s): Zhang, WW (Zhang WenWen); Wu, ZX (Wu ZhaoXin); Zhang, XW (Zhang XinWen); Liang, SX (Liang ShiXiong); Jiao, B (Jiao Bo); Hou, X (Hou Xun)

Source: CHINESE SCIENCE BULLETIN  Volume: 56  Issue: 21  Pages: 2210-2214  DOI: 10.1007/s11434-011-4555-3  Published: JUL 2011  

Abstract: We investigated the effects of pulsed current (PC) and direct current (DC) driving modes on the stability of organic light-emitting diodes with and without hole-injection layers (HILs). Two different HIL materials were used: copper phthalocyanine (CuPc) and 4,4',4aEuro(3)-tris(3-methylphenylphenylamino)triphenylamine (m-MDTATA). It was found that the half-lives of devices using PC driving modes were different from those of comparable devices using DC driving modes. For the devices without HILs, with CuPc HILs and with MTDATA HILs, the half-lives of the devices were changed by factors of 1.91, 1.41 and 0.86, respectively, when operated in PC rather than DC driving modes. Our analysis of the electrical characteristics of the corresponding hole-only devices showed that the number of holes injected into devices was greatly reduced by inserting an m-MTDATA layer compared with other designs. The results indicate that different ratios of injected electrons and holes can be obtained in these devices. Moreover, these ratios play a dominant role in the dependence of the stability of the device on the driving mode.

Accession Number: WOS:000292271600004

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Zhang, Xinwen 

C-3878-2008 

 

Jiao, Bo 

C-4233-2008 

 

Wu, Zhaoxin 

A-5867-2015 

 

 

ISSN: 1001-6538

 


 

Record 96 of 209

Title: Laser beam smoothing based on spherical circular grating

Author(s): Zhao, X (Zhao, Xin); Xie, YJ (Xie, Yongjun)

Source: JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS  Volume: 13  Issue: 7-8  Pages: 792-796  Published: JUL 2011  

Abstract: We propose a new method of beam smoothing based on spherical circular grating to reduce the perturbation in near field and focal plane. Our numerical simulation demonstrates that the smoothing effect using circular grating is better than that of 2D-SSD. The new method has potential application in inertial confinement fusion (ICF).

Accession Number: WOS:000294887100009

ISSN: 1454-4164

eISSN: 1841-7132

 


 

Record 97 of 209

Title: Characterization of vector diffraction-free beams

Author(s): Wang, TT (Wang, Ting-Ting); Yang, SY (Yang, Shuang-Yan); Li, CF (Li, Chun-Fang)

Source: OPTICS LETTERS  Volume: 36  Issue: 12  Pages: 2342-2344  DOI: 10.1364/OL.36.002342  Published: JUN 15 2011  

Abstract: It is observed that a constant unit vector denoted by I is needed to characterize a complete orthonormal set of vector diffraction-free beams. The previously found diffraction-free beams are shown to be included as special cases. The I-dependence of the longitudinal component of diffraction-free beams is also discussed. (C) 2011 Optical Society of America

Accession Number: WOS:000291722100057

PubMed ID: 21686014

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

wang, tingting 

AAK-2640-2020 

 

Li, Chun-Fang 

D-2349-2012 

 

Li, Chun-Fang 

 

0000-0001-6897-8097 

 

ISSN: 0146-9592

 


 

Record 98 of 209

Title: X-ray photon-counting detector based on a micro-channel plate for pulsar navigation

Author(s): Chen, BM (Chen, Baomei); Zhao, BS (Zhao, Baosheng); Hu, HJ (Hu, Huijun); Yan, QR (Yan, Qiurong); Sheng, LZ (Sheng, Lizhi)

Source: CHINESE OPTICS LETTERS  Volume: 9  Issue: 6  Article Number: 060401  DOI: 10.3788/COL201109.060401  Published: JUN 10 2011  

Abstract: The pulse time of arrival (TOA) is a determining parameter for accurate timing and positioning in X-ray pulsar navigation. The pulse TOA can be calculated by comparing the measured arrival time with the predicted arrival time of the X-ray pulse for pulsar. In this study, in order to research the measurement of pulse arrival time, an experimental system is set up. The experimental system comprises a simulator of the X-ray pulsar, an X-ray detector, a time-measurement system, and a data-processing system. An X-ray detector base is proposed on the basis of the micro-channel plate (MCP), which is sensitive to soft X-ray in the 1-10 keV band. The MCP-based detector, the structure and principle of the experimental system, and results of the pulse profile are described in detail. In addition, a discussion of the effects of different X-ray pulse periods and the quantum efficiency of the detector on pulse-profile signal-to-noise ratio (SNR) is presented. Experimental results reveal that the SNR of the measured pulse profile becomes enhanced as the quantum efficiency of the detector increases. The SNR of the pulse profile is higher when the period of the pulse is smaller at the same integral.

Accession Number: WOS:000291671700004

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

feng, chen 

JLM-8296-2023 

 

Sheng, Lizhi 

G-4282-2018 

 

zhang, shijie 

HGF-0836-2022 

 

 

ISSN: 1671-7694

 


 

Record 99 of 209

Title: Slightly off-axis interferometry for microscopy with second wavelength assistance

Author(s): Han, JH (Han, Junhe); Gao, P (Gao, Peng); Yao, BL (Yao, Baoli); Gu, YZ (Gu, Yuzong); Huang, MJ (Huang, Mingju)

Source: APPLIED OPTICS  Volume: 50  Issue: 17  Pages: 2793-2798  DOI: 10.1364/AO.50.002793  Published: JUN 10 2011  

Abstract: Slightly off-axis interferometry for microscopy has been performed, where the dc term of the interferogram is suppressed by the object wave in another wavelength. One wavelength of the laser beam (red light) is used to generate the slightly off-axis interferogram, while the second wavelength (blue light) is employed to measure the transmittance of the specimen. Both the red light and blue light are recorded simultaneously by a color CCD camera and can be separated without cross talk via the red-green-blue components. The dc term of the slightly off-axis interferogram of red light is suppressed with the object wave of blue light. As a consequence, the requirement on the off-axis angle between the object and reference waves is relaxed as well as the requirement on the resolving power of CCD camera. (C) 2011 Optical Society of America

Accession Number: WOS:000291872800037

PubMed ID: 21673785

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Yao, Baoli 

AAB-4606-2021 

 

Gu, Yuzong 

ABC-5639-2021 

0000-0002-7107-5187 

 

ISSN: 1559-128X

eISSN: 2155-3165

 


 

Record 100 of 209

Title: Improvement of the performance of the twisted-nematic liquid-crystal display as a phase modulator

Author(s): Ma, BH (Ma, Baiheng); Yao, BL (Yao, Baoli); Li, Z (Li, Ze); Ye, T (Ye, Tong)

Source: APPLIED OPTICS  Volume: 50  Issue: 17  Pages: 2588-2593  DOI: 10.1364/AO.50.002588  Published: JUN 10 2011  

Abstract: A twisted-nematic liquid-crystal display (TN-LCD) placed between two linear polarizers (P) generally produces coupled intensity and phase modulations. For the purpose of phase-only modulation, quarter-wave plates (QWPs) are often used in front of or behind the LCD. In this paper, we demonstrate theoretically and experimentally the QWPs' effect on the modulation properties of the TN-LCD based on the general Jones matrix descriptions for all the devices, which circumvents the inconvenience of the traditional method on the basis of the TN-LCD's internal parameters. We prove that the phase modulation depth of the TN-LCD can be further increased in the configuration of P-1-QWP(1)-LCD-QWP(2)-P-2 with each component properly oriented, provided that the mean intensity transmission is decreased to a lower level. By observing the diffracted patterns of the Ronchi phase grating or blazed grating addressed onto the TN-LCD, we verify the validity of the proposed method. Improved reconstructed image quality from the kinoform loaded on the TN-LCD is obtained in this configuration. This approach is valuable when the TN-LCD is employed as a phase modulator, especially for the modern, thinner TN-LCD. (C) 2011 Optical Society of America

Accession Number: WOS:000291872800012

PubMed ID: 21673760

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Ye, Tong 

A-8251-2010 

0000-0003-1017-6969 

Yao, Baoli 

AAB-4606-2021 

 

Ye, Tong 

ABG-8560-2021 

0000-0003-1017-6969 

 

ISSN: 1559-128X

eISSN: 2155-3165

 


 

Record 101 of 209

Title: Arbitrary ROI-based wavelet video coding

Author(s): Lan, XG (Lan, Xuguang); Zheng, NN (Zheng, Nanning); Ma, W (Ma, Wen); Yuan, Y (Yuan, Yuan)

Source: NEUROCOMPUTING  Volume: 74  Issue: 12-13  Pages: 2114-2122  DOI: 10.1016/j.neucom.2011.01.012  Published: JUN 2011  

Abstract: This paper presents a novel arbitrary shape region of interest (ROI) coding for scalable wavelet video codec. The motion information of the ROIs is estimated by macro block padding and polygon matching. The derived motion vectors are set as the motion trajectory of the samples to generate a one-dimensional temporal signal. This signal is then filtered to reduce the temporal redundancy using motion compensated temporal filtering for arbitrary shape ROI. Compared to traditional non-ROI coding, the reconstructed quality of the ROI coding can be significantly improved at low bit-rates. The efficiency of motion compensated temporal filtering (MCTF) based on arbitrary ROI is also compared with that of the video object coding in MPEG-4. Based on large number of experiments, the ability of the MCTF to reduce the temporal redundancy is demonstrated as better than (or at least comparable to) that of MPEG-4. (C) 2011 Published by Elsevier B.V.

Accession Number: WOS:000291915500008

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

yuan, Yuan 

ISA-0923-2023 

 

Lan, Xuguang 

N-8814-2019 

0000-0002-3422-944X 

Yuan, Yuan 

ABB-2379-2020 

 

Yuan, Yuan 

GVS-5120-2022 

 

 

ISSN: 0925-2312

eISSN: 1872-8286

 


 

Record 102 of 209

Title: Fabrication and characterization of Yb<SUP>3+</SUP>-doped gain-guided index-antiguided fiber with D-shaped inner cladding

Author(s): Li, WN (Li, Weinan); Lu, M (Lu, Min); Yang, Z (Yang, Zhi); Guo, HT (Guo, Haitao); Wang, PF (Wang, Pengfei); Peng, B (Peng, Bo)

Source: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS  Volume: 28  Issue: 6  Pages: 1498-1501  DOI: 10.1364/JOSAB.28.001498  Published: JUN 2011  

Abstract: Yb(3+)doped gain-guided index-antiguided fibers based on phosphate glasses are drawn using the rod-in-tube technique. These fibers have a circular core with 200 mu m diameter and a D-shaped inner cladding with a 630/480 mu m diameter for the longer/shorter axis. The negative index profile is present in these fibers, in which the core index of refraction is 0.019% lower than that of the inner cladding. Moreover, their laser amplifier characteristics are experimentally demonstrated, and the method of further improvement in laser performance is suggested. (C) 2011 Optical Society of America

Accession Number: WOS:000291314600020

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Lu, min 

JPL-4028-2023 

 

Wang, Pengfei 

D-7632-2012 

0000-0002-5285-9832 

 

ISSN: 0740-3224

 


 

Record 103 of 209

Title: Ytterbium doped all-fiber-path all-normal dispersion mode-locked laser based on semiconductor saturable mirror

Author(s): Lian, FQ (Lian, F. Q.); Fan, ZW (Fan, Zh. W.); Wang, XF (Wang, X. F.); Huang, YT (Huang, Y. T.); Huang, K (Huang, K.); Ma, YF (Ma, Y. F.); Niu, G (Niu, G.); Li, XH (Li, X. H.); Yu, J (Yu, J.)

Source: LASER PHYSICS  Volume: 21  Issue: 6  Pages: 1103-1107  DOI: 10.1134/S1054660X11110181  Published: JUN 2011  

Abstract: In this paper, we describe a compact all-fiber-path picosecond pulse based on Ytterbium doped fiber oscillator. A home-made novel SESAM mounted on fiber is reported, by which stable mode locking is obtained. The SESAM possesses the low saturation flux 20 mu J/cm(2) (versus prior low saturation flux 32 mu J/cm(2)), which effectively reduces the pump power threshold of mode locking. The fiber laser generates 15 ps pulse trains without a dispersive delay line or anomalous dispersion in the cavity. Mode locking pulse with 30 MHz basic repetition-rate was produced, with 10-30 mW scale average output power at 1064 nm. Through 60 h of uninterrupted laser operating, mode locking is steady as ever.

Accession Number: WOS:000291486200033

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Li, Xiaohui 

J-9580-2012 

0000-0002-5600-3820 

 

ISSN: 1054-660X

eISSN: 1555-6611

 


 

Record 104 of 209

Title: Evolution of dissipative-soliton laser from molecule to multipulse

Author(s): Liu, XM (Liu, X. M.); Duan, LN (Duan, L. N.); Mao, D (Mao, D.); Wang, LR (Wang, L. R.)

Source: LASER PHYSICS  Volume: 21  Issue: 6  Pages: 1085-1091  DOI: 10.1134/S1054660X1111020X  Published: JUN 2011  

Abstract: We report on the evolution of dissipative-soliton laser from single pulse to soliton molecule, lastly to multiple pulses. The experimental observations show that the pulse separation of soliton molecules is oscillating stochastically. It is found that the proposed fiber laser delivers pulses from a soliton to a soliton molecule, two solitons, a soliton molecule together with a soliton, and three solitons, respectively, when, the pump strength is enhanced gradually.

Accession Number: WOS:000291486200030

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Mao, Dong 

G-5113-2014 

 

Wu, Jiale 

JQV-3750-2023 

 

 

ISSN: 1054-660X

 


 

Record 105 of 209

Title: Imaging properties of a tetra wedge readout

Author(s): Liu, YA (Liu Yong-An); Yan, QR (Yan Qiu-Rong); Sai, XF (Sai Xiao-Feng); Wei, YL (Wei Yong-Lin); Sheng, LZ (Sheng Li-Zhi); Yang, H (Yang Hao); Hu, HJ (Hu Hui-Jun); Zhao, BS (Zhao Bao-Sheng)

Source: CHINESE PHYSICS B  Volume: 20  Issue: 6  Article Number: 068503  DOI: 10.1088/1674-1056/20/6/068503  Published: JUN 2011  

Abstract: The decoding principle of a tetra wedge anode, which is a development of the wedge and strip anode, is described. The influence of charge cloud size on decoding accuracy is studied using the Monte Carlo method. Simulation results show that the decoding error is large when the size of charge clouds collected by the anode is small. Thus, the charge clouds collected by the tetra wedge anode should reach a necessary size to ensure accurate decoding. Finally, using the ultraviolet photon counting imaging system, the linearity and the spatial resolution of the system are tested. Experimental results show that the system has a good linearity and the spatial resolution is better than 100 mu m.

Accession Number: WOS:000291388800084

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

feng, chen 

JLM-8296-2023 

 

Sheng, Lizhi 

G-4282-2018 

 

zhang, shijie 

HGF-0836-2022 

 

 

ISSN: 1674-1056

 


 

Record 106 of 209

Title: Nanoplasmonic triple-wavelength demultiplexers in two-dimensional metallic waveguides

Author(s): Lu, H (Lu, H.); Liu, XM (Liu, X. M.); Wang, LR (Wang, L. R.); Mao, D (Mao, D.); Gong, YK (Gong, Y. K.)

Source: APPLIED PHYSICS B-LASERS AND OPTICS  Volume: 103  Issue: 4  Pages: 877-881  DOI: 10.1007/s00340-011-4525-0  Published: JUN 2011  

Abstract: A novel kind of plasmonic wavelength demultiplexers (WDMs) based on two-dimensional metal-insulator-metal waveguides with side coupled nanocavities (SCNCs) is proposed and numerically investigated. The WDMs contain three waveguide output channels, each of which functions as a dual-stopband plasmonic filter. The demultiplexing wavelengths can be tuned by controlling the lengths and widths of SCNCs. The finite-difference time-domain results can be accurately analyzed by the resonant theory of nanocavity. Our structures have important potential applications for design of WDM systems in highly integrated optical circuits.

Accession Number: WOS:000291996400017

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Mao, Dong 

G-5113-2014 

 

Lu, Hua 

G-3042-2014 

 

Wu, Jiale 

JQV-3750-2023 

 

Gong, Yongkang 

F-1335-2017 

0000-0002-2830-4423 

 

ISSN: 0946-2171

eISSN: 1432-0649

 


 

Record 107 of 209

Title: Semisupervised Dimensionality Reduction and Classification Through Virtual Label Regression

Author(s): Nie, FP (Nie, Feiping); Xu, D (Xu, Dong); Li, XL (Li, Xuelong); Xiang, SM (Xiang, Shiming)

Source: IEEE TRANSACTIONS ON SYSTEMS MAN AND CYBERNETICS PART B-CYBERNETICS  Volume: 41  Issue: 3  Pages: 675-685  DOI: 10.1109/TSMCB.2010.2085433  Published: JUN 2011  

Abstract: Semisupervised dimensionality reduction has been attracting much attention as it not only utilizes both labeled and unlabeled data simultaneously, but also works well in the situation of out-of-sample. This paper proposes an effective approach of semisupervised dimensionality reduction through label propagation and label regression. Different from previous efforts, the new approach propagates the label information from labeled to unlabeled data with a well-designed mechanism of random walks, in which outliers are effectively detected and the obtained virtual labels of unlabeled data can be well encoded in a weighted regression model. These virtual labels are thereafter regressed with a linear model to calculate the projection matrix for dimensionality reduction. By this means, when the manifold or the clustering assumption of data is satisfied, the labels of labeled data can be correctly propagated to the unlabeled data; and thus, the proposed approach utilizes the labeled and the unlabeled data more effectively than previous work. Experimental results are carried out upon several databases, and the advantage of the new approach is well demonstrated.

Accession Number: WOS:000290734400006

PubMed ID: 21118781

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

li, xiang 

GWM-6319-2022 

 

Nie, Feiping 

B-3039-2012 

 

Li, Xuelong 

Z-3785-2019 

 

Xu, Dong 

A-3694-2011 

 

Li, Xuelong 

ABF-3381-2020 

 

Li, Xuelong 

 

0000-0002-0019-4197 

 

ISSN: 1083-4419

eISSN: 1941-0492

 


 

Record 108 of 209

Title: Giant Birefringence of Periodic Dielectric Waveguides

Author(s): Zhang, WF (Zhang, Wenfu); Liu, JH (Liu, Jihong); Huang, WP (Huang, Wei-Ping); Zhao, W (Zhao, Wei)

Source: IEEE PHOTONICS JOURNAL  Volume: 3  Issue: 3  Pages: 512-520  DOI: 10.1109/JPHOT.2011.2154319  Published: JUN 2011  

Abstract: The giant (Delta n > 1.5) and broadband achromatic birefringence is realized by periodic dielectric waveguides (PDWs), which benefit from low loss transmission, compact size, and simple structure. Based on the PDW, ultrabroadband achromatic (> 100 nm), low-order ultracompact (< lambda), and ultrahigh-order (500th order) wave plates are designed successfully.

Accession Number: WOS:000291318300001

ISSN: 1943-0655

 


 

Record 109 of 209

Title: STRUCTURAL DEPENDENCE OF THIRD-ORDER OPTICAL NONLINEARITY OF GeS<sub>2</sub>-Ga<sub>2</sub>S<sub>3</sub>-AgX (X=Cl, Br, I) CHALCOHALIDE GLASSES

Author(s): Zheng, X (Zheng, X.); Tao, H (Tao, H.); Cheng, F (Cheng, F.); Guo, H (Guo, H.); Lin, C (Lin, C.); Zhao, X (Zhao, X.)

Source: CHALCOGENIDE LETTERS  Volume: 8  Issue: 6  Pages: 371-376  Published: JUN 2011  

Abstract: GeS2-Ga2S3-AgX (X=Cl, Br, I) chalcohalide glasses were prepared and their microstructures were investigated by Raman scattering method. Third-order optical nonlinearities were also characterized utilizing the Z-scan method at the wavelength of 800nm. The halogens compositional dependences of third-order optical nonlinearities of these glasses were discussed from the structural point of view. Among the different additives of silver halides, AgBr was demonstrated to have largest contribution to a larger n(2) and smaller FOM simultaneously in the studied glass system, which indicating that Br-containing chalcohalide glasses would be more suitable for the application in all-optical switching devices.

Accession Number: WOS:000295031200002

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Tao, Haizheng 

C-9243-2014 

0000-0002-5013-837X 

Zhao, Xiujian 

E-1499-2011 

 

Lin, Changgui 

B-8915-2009 

0000-0002-0574-6296 

 

ISSN: 1584-8663

 


 

Record 110 of 209

Title: Highly flexible all-optical metamaterial absorption switching assisted by Kerr-nonlinear effect

Author(s): Gong, YK (Gong, Yongkang); Li, ZY (Li, Zhiyuan); Fu, JX (Fu, Jinxin); Chen, YH (Chen, Yuhui); Wang, GX (Wang, Guoxi); Lu, H (Lu, Hua); Wang, LR (Wang, Leirang); Liu, XM (Liu, Xueming)

Source: OPTICS EXPRESS  Volume: 19  Issue: 11  Pages: 10193-10198  DOI: 10.1364/OE.19.010193  Published: MAY 23 2011  

Abstract: A three-dimensional metamaterial nanostructure for realizing all-optical absorption switching is proposed and investigated. The structure consists of dual metallic layers for allowing near-perfect absorption due to electric and magnetic resonances, and a nonlinear Kerr-dielectric layer for actively manipulating the nanostructure absorption. The finite-difference time-domain simulation results demonstrate that, by adjusting the incident optical intensity, the metamaterial absorption can be flexibly tuned from near unity to zero. The all-optical absorption switching structure can find potential applications in actively integrated photonic circuits for thermal sensing, photo detecting, and optical imaging. (C)2011 Optical Society of America

Accession Number: WOS:000290852800017

PubMed ID: 21643277

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Chen, Feng 

JQW-8742-2023 

 

Li, Zhi-Yuan 

H-6923-2017 

0000-0003-4692-5028 

li, zy 

HZM-1892-2023 

 

Fu, Jinxin 

K-8029-2013 

 

Chen, Yu-Hui 

AAB-8007-2022 

 

Wu, Jiale 

JQV-3750-2023 

 

li, zhiyuan 

HGD-9581-2022 

 

Lu, Hua 

G-3042-2014 

 

Gong, Yongkang 

F-1335-2017 

0000-0002-2830-4423 

 

ISSN: 1094-4087

 


 

Record 111 of 209

Title: Multi-channel plasmonic waveguide filters with disk-shaped nanocavities

Author(s): Lu, H (Lu, Hua); Liu, XM (Liu, Xueming); Gong, YK (Gong, Yongkang); Wang, LR (Wang, Leiran); Mao, D (Mao, Dong)

Source: OPTICS COMMUNICATIONS  Volume: 284  Issue: 10-11  Pages: 2613-2616  DOI: 10.1016/j.optcom.2011.01.046  Published: MAY 15 2011  

Abstract: A kind of multi-channel plasmonic filters based on metal-insulator-metal waveguides with disk-shaped nanocavities is proposed and numerically investigated. By calculating the resonant mode of disk-shaped nanocavity, it is found that the radius and refractive index of the nanocavity effectively control the resonance wavelength, which is consistent with the results obtained by finite-difference time-domain method. The characteristics of resonance spectra are influenced by the gap width between the cavity and waveguide, as can be exactly analyzed by temporal coupled mode theory. In addition, multi-channel plasmonic filters are achieved by increasing the number of nanocavity. (C) 2011 Elsevier B.V. All rights reserved.

Accession Number: WOS:000289128600037

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Wu, Jiale 

JQV-3750-2023 

 

Lu, Hua 

G-3042-2014 

 

Mao, Dong 

G-5113-2014 

 

Gong, Yongkang 

F-1335-2017 

0000-0002-2830-4423 

 

ISSN: 0030-4018

eISSN: 1873-0310

 


 

Record 112 of 209

Title: Multiple responses of TPP-assisted near-perfect absorption in metal/Fibonacci quasiperiodic photonic crystal

Author(s): Gong, YK (Gong, Yongkang); Liu, XM (Liu, Xueming); Wang, LR (Wang, Leiran); Lu, H (Lu, Hua); Wang, GX (Wang, Guoxi)

Source: OPTICS EXPRESS  Volume: 19  Issue: 10  Pages: 9759-9769  DOI: 10.1364/OE.19.009759  Published: MAY 9 2011  

Abstract: Absorption properties in one-dimensional quasiperiodic photonic crystal composed of a thin metallic layer and dielectric Fibonacci multilayers are investigated. It is found that a large number of photonic stopbands can occur at the dielectric Fibonacci multilayers. Tamm plasmon polaritons (TPPs) with the frequencies locating at each photonic stopband are excited at the interface between the metallic layer and the dielectric layer, leading to almost perfect absorption for the energy of incident wave. By adjusting the length of dielectric layer with higher refractive-index or the Fibonacci order, the number of absorption peaks can be tuned effectively and enlarged significantly. (C) 2011 Optical Society of America

Accession Number: WOS:000290490200099

PubMed ID: 21643233

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Lu, Hua 

G-3042-2014 

 

Chen, Feng 

JQW-8742-2023 

 

Wu, Jiale 

JQV-3750-2023 

 

Gong, Yongkang 

F-1335-2017 

0000-0002-2830-4423 

 

ISSN: 1094-4087

 


 

Record 113 of 209

Title: The tempo-spatially modulated polarization atmosphere Michelson interferometer

Author(s): Zhang, CM (Zhang, ChunMin); Zhu, HC (Zhu, HuaChun); Zhao, BC (Zhao, Baochang)

Source: OPTICS EXPRESS  Volume: 19  Issue: 10  Pages: 9626-9635  DOI: 10.1364/OE.19.009626  Published: MAY 9 2011  

Abstract: A space-based tempo-spatially modulated polarization atmosphere Michelson interferometer (TSMPAMI) is described. It uses the relative movement between the TSMPAMI and the measured target to change optical path difference. The acquisition method of interferogram is presented. The atmospheric temperatures and horizontal winds can be derived from the optical observations. The measurement errors of the winds and temperatures are discussed through simulations. In the presence of small-scale structures of the atmospheric fields, the errors are found to be significantly influenced by the mismatch of the scenes observed by the adjacent CCD sub-areas aligned along the orbiter's track during successive measurements due to the orbital velocity and the exposure time. For most realistic conditions of the orbit and atmosphere, however, the instrument is proven suitable for measuring the atmospheric parameters. (C) 2011 Optical Society of America

Accession Number: WOS:000290490200087

PubMed ID: 21643221

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

zhang, chunmei 

IUQ-7038-2023 

 

Zhang, Chun 

GRE-8915-2022 

 

 

ISSN: 1094-4087

 


 

Record 114 of 209

Title: Controllable Goos-Hanchen shifts and spin beam splitter for ballistic electrons in a parabolic quantum well under a uniform magnetic field

Author(s): Chen, X (Chen, Xi); Lu, XJ (Lu, Xiao-Jing); Wang, Y (Wang, Yan); Li, CF (Li, Chun-Fang)

Source: PHYSICAL REVIEW B  Volume: 83  Issue: 19  Article Number: 195409  DOI: 10.1103/PhysRevB.83.195409  Published: MAY 4 2011  

Abstract: The quantum Goos-Hanchen shift for ballistic electrons is investigated in a parabolic potential well under a uniform vertical magnetic field. It is found that the Goos-Hanchen shift can be negative as well as positive, and becomes zero at transmission resonances. The beam shift depends not only on the incident energy and incidence angle, but also on the magnetic field and Landau quantum number. Based on these phenomena, we propose an alternative way to realize the spin beam splitter in the proposed spintronic device, which can completely separate spin-up and spin-down electron beams by negative and positive Goos-Hanchen shifts.

Accession Number: WOS:000290229800008

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Chen, Xi 

ABE-6575-2020 

0000-0003-4221-4288 

Li, Chun-Fang 

D-2349-2012 

 

Lu, Xiaojing 

 

0000-0002-7887-0159 

Li, Chun-Fang 

 

0000-0001-6897-8097 

Lu, Xiao-Jing 

 

0000-0002-7888-696X 

 

ISSN: 2469-9950

eISSN: 2469-9969

 


 

Record 115 of 209

Title: Comment on "Optical Orbital Angular Momentum from the Curl of Polarization"

Author(s): Yan, SH (Yan, Shaohui); Yao, BL (Yao, Baoli); Lei, M (Lei, Ming)

Source: PHYSICAL REVIEW LETTERS  Volume: 106  Issue: 18  Article Number: 189301  DOI: 10.1103/PhysRevLett.106.189301  Published: MAY 4 2011  

Accession Number: WOS:000290229100005

PubMed ID: 21635134

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Yao, Baoli 

AAB-4606-2021 

 

Lei, Ming 

JAD-1050-2023 

 

 

ISSN: 0031-9007

eISSN: 1079-7114

 


 

Record 116 of 209

Title: Study of non-classical light imaging technology

Author(s): Chen, MR (Chen, Ming-rui); Bi, SW (Bi, Si-wen); Dou, XB (Dou, Xi-bo); Liu, WY (Liu, Wang-yun)

Source: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT  Volume: 637  Pages: S130-S133  DOI: 10.1016/j.nima.2010.02.039  Supplement: 1  Published: MAY 1 2011  

Abstract: Non-classical light that generates through the optical parametric down-conversion process by using an optical parametric oscillator is introduced, and the imaging system based on the light is built. The characteristics of the light and the spatial resolution of the image are studied. The light irradiates directly on the object plate, producing a mass of signal photons, then the signal photons are collected by the charge-coupled device. The output electrical signal is collected by a high-speed data collection card and processed with software. Finally, the object image is acquired, and its revised image is obtained by image processing. The results indicate that the resolution of the image based on the non-classical infrared light is 1.43 times that of infrared coherent light. The non-classical light can be widely used for high-resolution imaging, spectrum analysis, and micro-biological sample detection. (C) 2010 Elsevier B.V. All rights reserved.

Accession Number: WOS:000291416600032

Conference Title: International Workshop on Ultra-short Electron & Photon Beams - Techniques and Applications

Conference Date: SEP 07-11, 2009

Conference Location: Xian, PEOPLES R CHINA

ISSN: 0168-9002

eISSN: 1872-9576

 


 

Record 117 of 209

Title: Preparation of a new type of high-resolution light source

Author(s): Dou, XB (Dou, X. B.); Chen, X (Chen, X.); Bi, SW (Bi, S. W.); Liu, WY (Liu, W. Y.); Chen, MR (Chen, M. R.); Chen, L (Chen, L.)

Source: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT  Volume: 637  Pages: S134-S136  DOI: 10.1016/j.nima.2010.02.040  Supplement: 1  Published: MAY 1 2011  

Abstract: The generation of a new type of high-resolution non-classical light source with a wavelength of 1064 nm is demonstrated experimentally. A periodically poled KTiOPO4 (PPKTP) crystal is installed in a continuous-wave optical parametric amplifier (OPA), which is pumped by a 532 am laser and seeded by a weak 1064 am laser. The optical parametric down-conversion process is activated in the OPA and generates a non-classical optical field at a wavelength of 1064 nm. The partial squeezed spectrum is pre-detected by a homodyne detection setup. The experiment demonstrates that the resolution of the non-classical optical field is 1.43 times that of the classical optical field. (C) 2010 Elsevier B.V. All rights reserved.

Accession Number: WOS:000291416600033

Conference Title: International Workshop on Ultra-short Electron & Photon Beams - Techniques and Applications

Conference Date: SEP 07-11, 2009

Conference Location: Xian, PEOPLES R CHINA

ISSN: 0168-9002

eISSN: 1872-9576

 


 

Record 118 of 209

Title: Comparison of pulse evolutions in low and ultra-large anomalous dispersion mode-locked fiber lasers

Author(s): Duan, LN (Duan, L. N.); Liu, XM (Liu, X. M.); Wang, LR (Wang, L. R.); Mao, D (Mao, D.); Wang, GX (Wang, G. X.)

Source: LASER PHYSICS  Volume: 21  Issue: 5  Pages: 948-953  DOI: 10.1134/S1054660X11090052  Published: MAY 2011  

Abstract: We have investigated and compared the pulse evolutions in low and ultra-large anomalous dispersion erbium-doped fiber lasers mode-locked by the nonlinear polarization rotation technique. Two lasers deliver the pulses that exhibit quite distinct characteristics such as pulse duration, spectral width, and spectral sidebands. Experimental observations show that the spectral width decreases from several nanometers to less than one nanometer whereas pulse duration extends about three times by changing the cavity dispersion from -0.03 to -15.50 ps(2). The solitons in ultra-large anomalous fiber laser show dips in the optical spectrum, which is quite distinct from that of conventional solitons observed in low anomalous regime.

Accession Number: WOS:000290813800027

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Wu, Jiale 

JQV-3750-2023 

 

Chen, Feng 

JQW-8742-2023 

 

Mao, Dong 

G-5113-2014 

 

 

ISSN: 1054-660X

 


 

Record 119 of 209

Title: Synthesis of a side chain conjugated polythiophene copolymer and its photovoltaic property

Author(s): Gao, C (Gao, Chao); Qu, B (Qu, Bo); Jiang, ZL (Jiang, Zhongliang); Tian, D (Tian, Di); Liu, HL (Liu, Hongli); Chen, ZJ (Chen, Zhijian); Xiao, LX (Xiao, Lixin); Gong, QH (Gong, Qihuang)

Source: SYNTHETIC METALS  Volume: 161  Issue: 9-10  Pages: 864-868  DOI: 10.1016/j.synthmet.2011.02.014  Published: MAY 2011  

Abstract: A new soluble polythiophene copolymer with phenylene-vinylene conjugated side chain (PEHOPVTh-Th) was synthesized. Polymer photovoltaic solar cells using PEHOPVTh-Th as donor and [6,6]-phenyl-C61-butyric acid methyl ester (PC61BM) as acceptor was demonstrated. The absorption spectrum of the PEHOPVTh-Th showed strong absorption in the visible region and a 55 nm red-shift in comparison with that of its homopolymer (PEHOPVTh). By adjusting the ratio of PEHOPVTh-Th to PC61BM, the polymer solar cells based on PEHOPVTh-Th showed a power conversion efficiency of 0.37% under 100 mW/cm(2) AM 1.5G simulated sunlight when the weight ratio of the polymer to PC61BM equals to 1:3. (C) 2011 Elsevier B.V. All rights reserved.

Accession Number: WOS:000291832800034

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Qu, Bo 

C-9202-2015 

 

Xiao, Lixin 

A-9679-2016 

 

Xiao, Lixin 

AAD-7944-2019 

 

 

ISSN: 0379-6779

 


 

Record 120 of 209

Title: The third-order optical nonlinearities of Ge-Ga-Sb(In)-S chalcogenide glasses

Author(s): Guo, HT (Guo, Haitao); Chen, HY (Chen, Hongyan); Hou, CQ (Hou, Chaoqi); Lin, AX (Lin, Aoxiang); Zhu, YG (Zhu, Yonggang); Lu, SD (Lu, Shoudi); Gu, SX (Gu, Shaoxuan); Lu, M (Lu, Min); Peng, B (Peng, Bo)

Source: MATERIALS RESEARCH BULLETIN  Volume: 46  Issue: 5  Pages: 765-770  DOI: 10.1016/j.materresbull.2010.11.020  Published: MAY 2011  

Abstract: The third-order optical nonlinearities of 80GeS(2)center dot(20 - x)Ga(2)S(3)center dot xY(2)S(3) (x = 0, 5, 10, 15, 20 and Y = Sb or In) chalcogenide glasses were investigated utilizing the Z-scan method at the wavelength of 800 nm and their linear optical properties and structure were also studied. By analyzing the compositional dependences and possible influencing factors including the linear refractive index, the concentration of lone electron pairs, the optical bandgap and the amount of weak covalent/homopolar bonds, it indicates that the electronic contribution in weak heteropolar covalent and homopolar metallic bonds is responsible for large nonlinear refractive index n(2) in the chalcogenide glasses. These chalcogenide glasses have characteristics of environmentally friendship, wide transparency in the visible region, high nonlinear refractive index n(2) and low nonlinear absorption coefficient beta, and would be expected to be used in the all-optical switches working at 1330 nm and 1550 nm telecommunication wavelengths. (C) 2010 Elsevier Ltd. All rights reserved.

Accession Number: WOS:000289763700025

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Lu, min 

JPL-4028-2023 

 

Lin, Aoxiang 

C-9978-2009 

 

 

ISSN: 0025-5408

 


 

Record 121 of 209

Title: All-normal dispersion, figure-eight, tunable passively mode-locked fiber laser with an invisible and changeable intracavity bandpass filter

Author(s): Li, XH (Li, X. H.); Wang, YS (Wang, Y. S.); Zhao, W (Zhao, W.); Zhang, W (Zhang, W.); Yang, Z (Yang, Z.); Hu, XH (Hu, X. H.); Wang, HS (Wang, H. S.); Wang, XL (Wang, X. L.); Zhang, YN (Zhang, Y. N.); Gong, YK (Gong, Y. K.); Li, C (Li, C.); Shen, DY (Shen, D. Y.)

Source: LASER PHYSICS  Volume: 21  Issue: 5  Pages: 940-944  DOI: 10.1134/S1054660X11090143  Published: MAY 2011  

Abstract: We report dissipative solitons generation in the figure-8 all-normal dispersion fiber ring laser. The steep edge of the output optical spectrum results from the filtering effect of NOLM together with polarization controllers (PCs). No any physical bandpass filters are used in the cavity. Moreover, the output wavelength can be tuned in a wide range of about 20 nm. In the long-wavelength region, the spectral filtering effect of NOLM becomes weaker and output spectrum shows only one steep side. Filtering effect can perform periodically with increasing the pump power. The highly chirped pulse has good potential for application to the chirped pulse amplification (CPA) system.

Accession Number: WOS:000290813800025

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

liu, lingling 

IUQ-7478-2023 

 

Zhang, Yani 

HJI-6711-2023 

 

chen, si 

JPK-4258-2023 

 

zhang, yu 

HNS-5948-2023 

 

Li, Xiaohui 

J-9580-2012 

0000-0002-5600-3820 

Gong, Yongkang 

F-1335-2017 

0000-0002-2830-4423 

 

ISSN: 1054-660X

 


 

Record 122 of 209

Title: Theoretical study and experimental scheme for the generation of a 1064-nm continuous variable entangled light source with quasi-phase-matching PPKTP crystal

Author(s): Liu, WY (Liu, W. Y.); Bi, SW (Bi, S. W.)

Source: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT  Volume: 637  Pages: S153-S157  DOI: 10.1016/j.nima.2010.02.045  Supplement: 1  Published: MAY 1 2011  

Abstract: Beginning from Maxwell's equations, various factors required for the non-degenerate optical parametric amplifier (NOPA) to operate are considered step by step. Analytic expressions are obtained, generated from the experimental parameters and through the numerical simulation of the quantum-correlated spectrum between the signal and the idler modes from the NOPA operating below threshold. On this basis, an experimental program is designed for the generation of a 1064-nm continuous variable entanglement light source with a quasi-phase-matching periodical polarized KTiOPO4 (PPKTP) crystal through a below-threshold optical parametric down-conversion process. This will play a crucial role in subsequent experiments. (C) 2010 Elsevier B.V. All rights reserved.

Accession Number: WOS:000291416600038

Conference Title: International Workshop on Ultra-short Electron & Photon Beams - Techniques and Applications

Conference Date: SEP 07-11, 2009

Conference Location: Xian, PEOPLES R CHINA

ISSN: 0168-9002

eISSN: 1872-9576

 


 

Record 123 of 209

Title: Multiple incoherent gray photorefractive spatial solitons

Author(s): Lu, KQ (Lu, Keqing); Zhang, YH (Zhang, Yuhong); Tian, N (Tian, Ning); Li, KH (Li, Kehao); Zhang, YQ (Zhang, Yiqi); Zhang, XF (Zhang, Xianfeng); Miao, CY (Miao, Changyun); Zhang, YP (Zhang, Yanpeng); Xu, JJ (Xu, Jingjun)

Source: OPTICAL AND QUANTUM ELECTRONICS  Volume: 42  Issue: 5  Pages: 277-284  DOI: 10.1007/s11082-011-9450-2  Published: MAY 2011  

Abstract: We show that an even-number sequence of multiple incoherent gray photorefractive spatial screening solitons is possible. When the external voltage is small, only an incoherent Y-junction photorefractive spatial screening soliton is generated, corresponding to the lowest order in the even-number incoherent soliton sequence. When the external voltage is increased, the incoherent gray soliton beam splits into an even-number sequence of multiple incoherent gray photorefractive spatial screening solitons. For a given physical system such an even-number sequence of multiple incoherent gray photorefractive spatial screening solitons is obtained by either increasing the external voltage and decreasing the full width half maximum (FWHM) of the beam's intensity or increasing the external voltage and decreasing the beam's grayness.

Accession Number: WOS:000290577900001

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Jingjun, Xu 

A-1282-2010 

 

Miao, Changyun 

ABD-7766-2021 

 

xu, jing 

GRR-8698-2022 

 

zhang, xian 

GYA-0290-2022 

 

Zhang, Yiqi 

D-1846-2013 

 

Zhang, XZ 

HJA-4189-2022 

 

 

ISSN: 0306-8919

eISSN: 1572-817X

 


 

Record 124 of 209

Title: Spatial diagnostics of 532-nm laser-induced aluminum plasma

Author(s): Luo, WF (Luo, W. F.); Zhao, XX (Zhao, X. X.); Sun, QB (Sun, Q. B.); Gao, CX (Gao, C. X.); Tang, J (Tang, J.); Zhao, W (Zhao, W.)

Source: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT  Volume: 637  Pages: S158-S160  DOI: 10.1016/j.nima.2010.02.046  Supplement: 1  Published: MAY 1 2011  

Abstract: Spatial characteristics of the plasma generated by 532-nm Nd:YAG laser irradiation of aluminum alloy in air were studied. The electron density inferred by measuring the Stark broadened line profile of Al II at 281.62 nm decreases with increasing distance from the target surface. The electron temperature was determined by using the Boltzmann plot method. Due to thermal conduction towards the solid target and radiative cooling of the plasma, as well as conversion of thermal energy to kinetic energy, the electron temperature decreases both at the plasma edge and close to the target surface. (C) 2010 Elsevier B.V. All rights reserved.

Accession Number: WOS:000291416600039

Conference Title: International Workshop on Ultra-short Electron & Photon Beams - Techniques and Applications

Conference Date: SEP 07-11, 2009

Conference Location: Xian, PEOPLES R CHINA

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

xiao, wei 

KCK-6954-2024 

 

 

ISSN: 0168-9002

eISSN: 1872-9576

 


 

Record 125 of 209

Title: TRAVELOGUE ENRICHING AND SCENIC SPOT OVERVIEW BASED ON TEXTUAL AND VISUAL TOPIC MODELS

Author(s): Pang, YW (Pang, Yanwei); Lu, X (Lu, Xin); Yuan, Y (Yuan, Yuan); Li, XL (Li, Xuelong)

Source: INTERNATIONAL JOURNAL OF PATTERN RECOGNITION AND ARTIFICIAL INTELLIGENCE  Volume: 25  Issue: 3  Pages: 373-390  DOI: 10.1142/S0218001411008671  Published: MAY 2011  

Abstract: We consider the problem of enriching the travelogue associated with a small number (even one) of images with more web images. Images associated with the travelogue always consist of the content and the style of textual information. Relying on this assumption, in this paper, we present a framework of travelogue enriching, exploiting both textual and visual information generated by different users. The framework aims to select the most relevant images from automatically collected candidate image set to enrich the given travelogue, and form a comprehensive overview of the scenic spot. To do these, we propose to build two-layer probabilistic models, i.e. a text-layer model and image-layer models, on offline collected travelogues and images. Each topic (e.g. Sea, Mountain, Historical Sites) in the text-layer model is followed by an image-layer model with sub-topics learnt (e.g. the topic of sea is with the sub-topic like beach, tree, sunrise and sunset). Based on the model, we develop strategies to enrich travelogues in the following steps: (1) remove noisy names of scenic spots from travelogues; (2) generate queries to automatically gather candidate image set; (3) select images to enrich the travelogue; and (4) choose images to portray the visual content of a scenic spot. Experimental results on Chinese travelogues demonstrate the potential of the proposed approach on tasks of travelogue enrichment and the corresponding scenic spot illustration.

Accession Number: WOS:000291002600003

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Li, Xuelong 

ABF-3381-2020 

 

Yuan, Yuan 

ABB-2379-2020 

 

Yuan, Yuan 

GVS-5120-2022 

 

Li, Xuelong 

Z-3785-2019 

 

yuan, Yuan 

ISA-0923-2023 

 

li, xiang 

GWM-6319-2022 

 

Li, Xuelong 

 

0000-0002-0019-4197 

 

ISSN: 0218-0014

eISSN: 1793-6381

 


 

Record 126 of 209

Title: Autonomous Star Identification for GEO Objects Orientation Based on Delaunay Triangulation

Author(s): Sun, J (Sun, Jing); Li, GR (Li, Guangrui); Wen, DS (Wen, Desheng); Xue, B (Xue, Bin); Yang, SD (Yang, Shaodong)

Source: TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES  Volume: 54  Issue: 183  Pages: 62-66  DOI: 10.2322/tjsass.54.62  Published: MAY 2011  

Abstract: A novel star identification algorithm for GEO objects orientation is presented greatly. The quadrangle patterns are successfully generated by Delaunay triangulation applied to the sphere point set, which reduces the memory and identification time cost compared to the conventional triangle match algorithm. The guide database consisting of three correlative data tables is constructed to arrange the data efficiently. Furthermore, an index array is introduced to search the database rapidly. At validation, 60 images recorded by the GEO surveillance camera are used to implement the algorithm, which gives an identification rate ranging from 99.38% to 95.52% at various positional noise amplitudes. The achievable performance is demonstrated by comparison with two published algorithms.

Accession Number: WOS:000291141400009

ISSN: 0549-3811

 


 

Record 127 of 209

Title: Ultra-broadband high-energy pulse generation and evolution in a compact erbium-doped all-fiber laser

Author(s): Wang, LR (Wang, L. R.); Liu, XM (Liu, X. M.); Gong, YK (Gong, Y. K.); Mao, D (Mao, D.); Feng, H (Feng, H.)

Source: LASER PHYSICS LETTERS  Volume: 8  Issue: 5  Pages: 376-381  DOI: 10.1002/lapl.201010140  Published: MAY 2011  

Abstract: We have experimentally observed a new kind of ultra-broadband high-energy dissipative soliton pulse in a compact erbium-doped all-fiber laser with long cavity length and large net normal dispersion. The pulse characteristics and evolution processes are quite distinct from those reported in previous literatures. Remarkablely, the spectral width of pulses increases whereas the pulse duration decreases with the increase of pump power, so the pulse energy and peak power increase monotonically. At the maximum available pump power of 1.1 W, this fiber laser delivers pulses with the 3-dB bandwidth of about 73 nm, the pulse duration of about 56 ps, the pulse energy of about 200 nJ, and the peak power of about 3.5 kW. The proposed all-fiber laser can find important potentials in high-energy pulse generation and amplification systems.
[GRAPHICS]
Optical spectra at the pump powers of P-f = P-b = 150, 250, 350, 450, and 550 mW from bottom to top, respectively (C) 2011 by Astro Ltd. Published exclusively by WILEY-VCH Verlag GmbH & Co. KGaA

Accession Number: WOS:000289443000009

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Wu, Jiale 

JQV-3750-2023 

 

Mao, Dong 

G-5113-2014 

 

Gong, Yongkang 

F-1335-2017 

0000-0002-2830-4423 

 

ISSN: 1612-2011

eISSN: 1612-202X

 


 

Record 128 of 209

Title: Fabrication of high thermal conductive Al-cBN ceramic sinters by high temperature high pressure method

Author(s): Wang, PF (Wang, P. F.); Li, ZH (Li, Zh. H.); Zhu, YM (Zhu, Y. M.)

Source: SOLID STATE SCIENCES  Volume: 13  Issue: 5  Pages: 1041-1046  DOI: 10.1016/j.solidstatesciences.2011.01.023  Published: MAY 2011  

Abstract: Al-cBN ceramic sinters were fabricated by sintering micro-powder mixture of Al and cBN under high temperature and high pressure condition. Differential scanning calorimetry (DSC), X-ray diffraction (XRD), scanning electronic microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) elemental mapping analyses and laser flashing thermal conductivity measurements were performed to investigate the sintering properties and thermal conductivity of the Al-cBN ceramic sinters. XRD analysis revealed these Al cBN ceramic sinters were composed of a large portion of cBN and of a small portion of AIN, and very little amount of AIB(12) and hBN. Formation of boundary phase resulted in the rapid densification of the sinters, as well as the increase of their relative density with increasing Al additions. The Al-cBN ceramic sinters have a maximum thermal conductivity of about 1.94 W/cm K at room temperature and a much higher value of about 2.04 W/cm K at 200 degrees C. Their high thermal conductivity over that of AIN-hBN composites promise Al-cBN ceramic sinters favorite candidates as high efficiency heat sink materials for wide band gap semiconductors. (c) 2011 Elsevier Masson SAS. All rights reserved.

Accession Number: WOS:000291081900036

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Wang, Pengfei 

D-7632-2012 

0000-0002-5285-9832 

 

ISSN: 1293-2558

 


 

Record 129 of 209

Title: The Multi-Spectra Classification Algorithm Based on <i>K</i>-Means Clustering and Spectral Angle Cosine

Author(s): Wei, JX (Wei Jun-xia); Xiangli, B (Xiangli Bin); Gao, XH (Gao Xiao-hui); Duan, XF (Duan Xiao-feng)

Source: SPECTROSCOPY AND SPECTRAL ANALYSIS  Volume: 31  Issue: 5  Pages: 1357-1360  DOI: 10.3964/j.issn.1000-0593(2011)05-1357-04  Published: MAY 2011  

Abstract: The classification and de-aliasing methods with respect to multi-spectra and hyper-spectra have been widely studied in recent years. And both K-mean clustering algorithm and spectral similarity algorithm are familiar classification methods. The present paper improved the K-mean clustering algorithm by using spectral similarity match algorithm to perform a new spectral classification algorithm. Two spectra with the farthest distance first were chosen as reference spectra. The Euclidean distance method or spectral angle cosine method then were used to classify data cube on the basis of the two reference spectra, and delete the spectra which belongs to the two reference spectra. The rest data cube was used to perform new classification according to a third spectrum, which is the farthest distance or the biggest angle one corresponding to the two reference spectra. Multi-spectral data cube was applied in the experimental test. The results of K-mean clustering classification by ENVI, compared with simulation results of the improved K-mean algorithm and the spectral angle cosine method, demonstrated that the latter two classify two air bubbles explicitly and effectively, and the improved K-mean algorithm classifies backgrounds better, especially the Euclidean distance method can classify the backgrounds integrally.

Accession Number: WOS:000290462400048

PubMed ID: 21800600

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

GAO, XIAO 

JED-3257-2023 

 

 

ISSN: 1000-0593

 


 

Record 130 of 209

Title: Continuous measurement of the arrival times of x-ray photon sequence

Author(s): Yan, QR (Yan, Qiurong); Zhao, BS (Zhao, Baosheng); Sheng, LZ (Sheng, Lizhi); Liu, YA (Liu, Yong'an)

Source: REVIEW OF SCIENTIFIC INSTRUMENTS  Volume: 82  Issue: 5  Article Number: 053105  DOI: 10.1063/1.3592333  Published: MAY 2011  

Abstract: In order to record x-ray pulse profile for x-ray pulsar-based navigation and timing, this paper presents a continuous, high-precision method for measuring arrival times of photon sequence with a common starting point. In this method, a high stability atomic clock is counted to measure the coarse time of arrival photon. A high resolution time-to-digital converter is used to measure the fine time of arrival photon. The coarse times and the fine times are recorded continuously and then transferred to computer memory by way of memory switch. The pulse profile is obtained by a special data processing method. A special circuit was developed and a low-level x-ray pulse profile measurement experiment system was setup. The arrival times of x-ray photon sequence can be consecutively recorded with a time resolution of 500 ps and the profile of x-ray pulse was constructed. The data also can be used for analysis by many other methods, such as statistical distribution of photon events per time interval, statistical distribution of time interval between two photon events, photon counting histogram, autocorrelation and higher order autocorrelation. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3592333]

Accession Number: WOS:000291106700005

PubMed ID: 21639490

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

zhang, shijie 

HGF-0836-2022 

 

feng, chen 

JLM-8296-2023 

 

Sheng, Lizhi 

G-4282-2018 

 

 

ISSN: 0034-6748

eISSN: 1089-7623

 


 

Record 131 of 209

Title: Biased electric field analysis of a photoconductive antenna for terahertz generation

Author(s): Yang, J (Yang, Jian); Fan, WH (Fan, Wenhui); Xue, B (Xue, Bing)

Source: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT  Volume: 637  Pages: S165-S167  DOI: 10.1016/j.nima.2010.02.048  Supplement: 1  Published: MAY 1 2011  

Abstract: The development of terahertz (THz) science has been ongoing for decades. As such, the generation and detection of THz radiation tend to be advanced. Currently, there are two main approaches to detect THz radiation: free-space electro-optic sampling (FS-EOS) and photoconductive (PC) sampling. Among the generations, the photoconductive effect is significant in the amplitude of THz radiation, which is believed to be proportional to the magnitude of the inner electric field. In order to increase THz radiation by safely enhancing the biased electric field, simulations on the electric field distributions of several different antennas have been conducted during our research. As a result of comparing and analyzing the findings of the simulations, a specific antenna structure suitable for a much higher biased field has been designed. Furthermore, satisfactory THz radiation is expected from this antenna. (C) 2010 Elsevier B.V. All rights reserved.

Accession Number: WOS:000291416600041

Conference Title: International Workshop on Ultra-short Electron & Photon Beams - Techniques and Applications

Conference Date: SEP 07-11, 2009

Conference Location: Xian, PEOPLES R CHINA

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Fan, Wen-Hui 

M-1060-2018 

0000-0003-2554-6723 

 

ISSN: 0168-9002

eISSN: 1872-9576

 


 

Record 132 of 209

Title: Enhancement of nonreciprocal phase shift by magneto-optical slot waveguide with a compensation wall

Author(s): Zhang, WF (Zhang, Wenfu); Mu, JW (mu, Jian-Wei); Huang, WP (Huang, Wei-Ping); Zhao, W (Zhao, Wei)

Source: APPLIED PHYSICS LETTERS  Volume: 98  Issue: 17  Article Number: 171109  DOI: 10.1063/1.3584035  Published: APR 25 2011  

Abstract: We demonstrated that the nonreciprocal phase shift (NPS) can be efficiently enhanced by introducing a low-index magneto-optical (MO) slot with a compensation wall (CW) in a high-index non-MO waveguide. The proposed structure has been examined by a perturbation theory and it is found that by adjusting the slot width and waveguide height, more than 20 times enhancement of NPS comparing with the rib waveguide with a CW can be realized. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3584035]

Accession Number: WOS:000290046100009

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Mu, Jianwei 

A-8336-2012 

 

Wang, Jiacheng 

ABE-5948-2020 

0000-0003-4327-1508 

 

ISSN: 0003-6951

 


 

Record 133 of 209

Title: Designs of multipass optical configurations based on the use of a cube corner retroreflector in the interferometer

Author(s): Wei, RY (Wei, Ruyi); Zhang, XM (Zhang, Xuemin); Zhou, JS (Zhou, Jinsong); Zhou, SZ (Zhou, Sizhong)

Source: APPLIED OPTICS  Volume: 50  Issue: 12  Pages: 1673-1681  DOI: 10.1364/AO.50.001673  Published: APR 20 2011  

Abstract: We describe designs of the multipass optical configurations of an interferometer with high spectral resolution with respect to 6, 12, and 24 times more optical passes than the conventional Michelson interferometer. In each design, a movable cube corner retroreflector is combined with a folding reflector group (FRG) as the interferometer's moving combination to implement the multipass optical configuration with the characteristic of surface division. Analyses reveal that when there are 12 or more optical passes, the net effect of the ray's angular deviation of the entire moving combination amounts to only the alignment error of one of the reflectors in the FRG, demonstrating the self-aligning property of the interferometer. (C) 2011 Optical Society of America

Accession Number: WOS:000289723600005

PubMed ID: 21509058

ISSN: 1559-128X

eISSN: 2155-3165

 


 

Record 134 of 209

Title: Study on scalable Coulombic degradation for estimating the lifetime of organic light-emitting devices

Author(s): Zhang, WW (Zhang, Wenwen); Wu, ZX (Wu, Zhaoxin); Liang, SX (Liang, Shixiong); Jiao, B (Jiao, Bo); Zhang, XW (Zhang, Xinwen); Wang, DW (Wang, Dawei); Hou, X (Hou, Xun); Chen, ZJ (Chen, Zhijian); Gong, QH (Gong, Qihuang)

Source: JOURNAL OF PHYSICS D-APPLIED PHYSICS  Volume: 44  Issue: 15  Article Number: 155103  DOI: 10.1088/0022-3727/44/15/155103  Published: APR 20 2011  

Abstract: The luminance decays of organic light-emitting diodes (OLEDs) are investigated with initial luminance of 1000 to 20 000 cdm(-2) through a scalable Coulombic degradation and a stretched exponential decay. We found that the estimated lifetime by scalable Coulombic degradation deviates from the experimental results when the OLEDs work with high initial luminance. By measuring the temperature of the device during degradation, we found that the higher device temperatures will lead to instabilities of organic materials in devices, which is expected to result in the difference between the experimental results and estimation using the scalable Coulombic degradation.

Accession Number: WOS:000289080700006

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Zhang, Xinwen 

C-3878-2008 

 

Wu, Zhaoxin 

A-5867-2015 

 

Jiao, Bo 

C-4233-2008 

 

 

ISSN: 0022-3727

 


 

Record 135 of 209

Title: Observations of four types of pulses in a fiber laser with large net-normal dispersion

Author(s): Wang, LR (Wang, Leiran); Liu, XM (Liu, Xueming); Gong, YK (Gong, Yongkang); Mao, D (Mao, Dong); Duan, LN (Duan, Lina)

Source: OPTICS EXPRESS  Volume: 19  Issue: 8  Pages: 7616-7624  DOI: 10.1364/OE.19.007616  Published: APR 11 2011  

Abstract: Four different types of pulses are experimentally obtained in one erbium-doped all-fiber laser with large net-normal dispersion. The proposed laser can deliver the rectangular-spectrum (RS), Gaussian-spectrum (GS), broadband-spectrum (BS), and noise-like pulses by appropriately adjusting the polarization states. These kinds of pulses have distinctly different characteristics. The RS pulses can easily be compressed to femtosecond level whereas the pulse energy is restricted by the trend of multi-pulse shaping with excessive pump. The GS and BS pulses always maintain the single-pulse operation with much higher pulse-energy and accumulate much more chirp. After launching the pulses into the photonic-crystal fiber, the supercontinuum can be generated with the bandwidth of > 700 nm by the BS pulses and of similar to 400 nm by the GS pulses, whereas it can hardly be generated by the RS pulses. The physical mechanisms behind the continuum generation are qualitatively investigated relating to different operating regimes. This work could help to a deeper insight of the normal-dispersion pulses. (C) 2011 Optical Society of America

Accession Number: WOS:000290482500058

PubMed ID: 21503070

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Wu, Jiale 

JQV-3750-2023 

 

Mao, Dong 

G-5113-2014 

 

Gong, Yongkang 

F-1335-2017 

0000-0002-2830-4423 

 

ISSN: 1094-4087

 


 

Record 136 of 209

Title: Millijoule pulse energy picosecond fiber chirped-pulse amplification system

Author(s): Yang, Z (Yang, Zhi); Hu, XH (Hu, Xiaohong); Wang, YS (Wang, Yishan); Zhang, W (Zhang, Wei); Zhao, W (Zhao, Wei)

Source: CHINESE OPTICS LETTERS  Volume: 9  Issue: 4  Article Number: 041401  DOI: 10.3788/COL201109.041401  Published: APR 10 2011  

Abstract: The efficient generation of a 1.17-mJ laser pulse with 360 ps duration using an ytterbium (Yb)-doped fiber amplifier chain seeded by a homemade mode-locked fiber laser is demonstrated experimentally. A specially designed figure-of-eight fiber laser acts as the seed source of a chirped-pulse amplification (CPA) system and generates mode-locked pulses with hundreds of picosecond widths. Two kinds of large-mode-area (LMA) double-clad Yb-doped fibers are employed to construct the pre-amplifier and main amplifier. All of the adopted instruments help avoid severe nonlinearity in fibers to raise sub-nanosecond pulse energy with acceptable signal-to-noise ratio (SNR). The output spectrum of this fiber-based CPA system shows that amplified spontaneous emission (ASE) is suppressed to better than 30 dB, and the onset of stimulated Raman scattering is excluded.

Accession Number: WOS:000289613000011

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

wang, yu 

IUQ-6654-2023 

 

Zhang, wen 

ITT-1192-2023 

 

zhang, yu 

HNS-5948-2023 

 

Liu, Chenyu 

KBQ-8899-2024 

 

zhao, wei 

IQS-1144-2023 

 

wang, yi 

GVT-8516-2022 

 

 

ISSN: 1671-7694

 


 

Record 137 of 209

Title: Luminescence properties of Nd<SUP>3+</SUP>-doped Y<sub>2</sub>O<sub>3</sub> nanoparticles in organic media

Author(s): Cui, XX (Cui, Xiaoxia); Lu, JB (Lu, Jiabao); Gao, C (Gao, Chao); Hou, CQ (Hou, Chaoqi); Wei, W (Wei, Wei); Peng, B (Peng, Bo)

Source: APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING  Volume: 103  Issue: 1  Pages: 27-32  DOI: 10.1007/s00339-010-6015-3  Published: APR 2011  

Abstract: Nd3+-doped yttrium oxide nanoparticles (Y2O3:Nd) with cubic phase were obtained successfully by a glycine-nitrate solution combustion method. The results of Fourier transform infrared spectra (FTIR) showed that the -OH groups residing on the nanoparticles surfaces were reduced effectively by modifying with capping agent. The modified Y2O3:Nd nanoparticles displayed good monodispersity and excellent luminescence in N,N-dimethylformamide (DMF) solvent. Some optical parameters were calculated by Judd-Ofelt analysis based on absorption and fluorescence spectra. A relative large stimulated emission cross section, 1.7x10(-20) cm(2), of the F-4(3/2)-> I-4(11/2) transition was calculated. Theses results show that the modified Y2O3:Nd nanoparticles display good luminescence behavior in organic media.

Accession Number: WOS:000288752800004

ISSN: 0947-8396

eISSN: 1432-0630

 


 

Record 138 of 209

Title: Enhanced third order nonlinear optical property of a side-chain conjugated thiophene copolymer

Author(s): Gao, C (Gao Chao); Qiu, SJ (Qiu Shao-Jun); Du, WS (Du Wei-Song); Hou, CQ (Hou Chao-Qi); Guo, HY (Guo Hong-Yan); Yang, ZF (Yang Zhao-Fei)

Source: ACTA PHYSICA SINICA  Volume: 60  Issue: 4  Article Number: 044211  DOI: 10.7498/aps.60.044211  Published: APR 2011  

Abstract: A novel side-chain conjugated polythiophene copolymer with a narrow band gap of 1. 72eV, poly [ 3-(5' - octylthienylenevinyl) thiophene] -thiophene (POTVTh-Th), is synthesized by the Stille coupling reaction. The third order nonlinear optical properties of the copolymer are measured by femtosecond Z-scan technique at 800nm. The results indicate that the third order nonlinear susceptibilities of the polymer solution and the film are 8. 84 x 10(-10) esu and 7. 25 x 10(-9) esu, respectively, which are 2. 17 and 1. 68 times bigger than those of its homopolymer, showing enhanced third order nonlinear optical properties and the good nonlinear optical properties of this side-chain conjugated copolymers.

Accession Number: WOS:000289863100043

ISSN: 1000-3290

 


 

Record 139 of 209

Title: Supervised Gaussian Process Latent Variable Model for Dimensionality Reduction

Author(s): Gao, XB (Gao, Xinbo); Wang, XM (Wang, Xiumei); Tao, DC (Tao, Dacheng); Li, XL (Li, Xuelong)

Source: IEEE TRANSACTIONS ON SYSTEMS MAN AND CYBERNETICS PART B-CYBERNETICS  Volume: 41  Issue: 2  Pages: 425-434  DOI: 10.1109/TSMCB.2010.2057422  Published: APR 2011  

Abstract: The Gaussian process latent variable model (GP-LVM) has been identified to be an effective probabilistic approach for dimensionality reduction because it can obtain a low-dimensional manifold of a data set in an unsupervised fashion. Consequently, the GP-LVM is insufficient for supervised learning tasks (e. g., classification and regression) because it ignores the class label information for dimensionality reduction. In this paper, a supervised GP-LVM is developed for supervised learning tasks, and the maximum a posteriori algorithm is introduced to estimate positions of all samples in the latent variable space. We present experimental evidences suggesting that the supervised GP-LVM is able to use the class label information effectively, and thus, it outperforms the GP-LVM and the discriminative extension of the GP-LVM consistently. The comparison with some supervised classification methods, such as Gaussian process classification and support vector machines, is also given to illustrate the advantage of the proposed method.

Accession Number: WOS:000288454300009

PubMed ID: 20699213

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

li, xiang 

GWM-6319-2022 

 

Li, Xuelong 

Z-3785-2019 

 

Li, Xuelong 

ABF-3381-2020 

 

Tao, Dacheng 

A-5449-2012 

0000-0001-7225-5449 

Wang, Xiumei 

 

0000-0002-2397-951X 

Li, Xuelong 

 

0000-0002-0019-4197 

 

ISSN: 1083-4419

eISSN: 1941-0492

 


 

Record 140 of 209

Title: A Relay Level Set Method for Automatic Image Segmentation

Author(s): Gao, XB (Gao, Xinbo); Wang, B (Wang, Bin); Tao, DC (Tao, Dacheng); Li, XL (Li, Xuelong)

Source: IEEE TRANSACTIONS ON SYSTEMS MAN AND CYBERNETICS PART B-CYBERNETICS  Volume: 41  Issue: 2  Pages: 518-525  DOI: 10.1109/TSMCB.2010.2065800  Published: APR 2011  

Abstract: This paper presents a new image segmentation method that applies an edge-based level set method in a relay fashion. The proposed method segments an image in a series of nested subregions that are automatically created by shrinking the stabilized curves in their previous subregions. The final result is obtained by combining all boundaries detected in these subregions. The proposed method has the following three advantages: 1) It can be automatically executed without human-computer interactions; 2) it applies the edge-based level set method with relay fashion to detect all boundaries; and 3) it automatically obtains a full segmentation without specifying the number of relays in advance. The comparison experiments illustrate that the proposed method performs better than the representative level set methods, and it can obtain similar or better results compared with other popular segmentation algorithms.

Accession Number: WOS:000288454300017

PubMed ID: 20875975

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

li, xiang 

GWM-6319-2022 

 

Wang, Bin 

M-9701-2019 

0000-0003-1118-3618 

Tao, Dacheng 

A-5449-2012 

0000-0001-7225-5449 

Li, Xuelong 

Z-3785-2019 

 

Li, Xuelong 

ABF-3381-2020 

 

Li, Xuelong 

 

0000-0002-0019-4197 

 

ISSN: 1083-4419

eISSN: 1941-0492

 


 

Record 141 of 209

Title: Advance in Interferogram Data Processing Technique

Author(s): Jing, JJ (Jing Juan-juan); Xiangli, B (Xiangli Bin); Lü, QB (Lue Qun-bo); Huang, M (Huang Min); Zhou, JS (Zhou Jin-song)

Source: SPECTROSCOPY AND SPECTRAL ANALYSIS  Volume: 31  Issue: 4  Pages: 865-870  DOI: 10.3964/j.issn.1000-0593(2011)04-0865-06  Published: APR 2011  

Abstract: Fourier transform spectrometry is a type of novel information obtaining technology, which integrated the functions of imaging and spectra, but the data that the instrument acquired is the interference data of the target, which is an intermediate data and couldn't be used directly, so data processing must be adopted for the successful application of the interferometric data. In the present paper, data processing techniques are divided into two classes: general-purpose and special-type. First, the advance in universal interferometric data processing technique is introduced, then the special-type interferometric data extracting method and data processing technique is illustrated according to the classification of Fourier transform spectroscopy. Finally, the trends of interferogram data processing technique are discussed.

Accession Number: WOS:000291227500001

PubMed ID: 21714217

ISSN: 1000-0593

 


 

Record 142 of 209

Title: Experimental investigation of high-energy wave-breaking-free-pulse generation in bidirectional-pumping all-fiber laser

Author(s): Liu, XM (Liu, Xueming); Mao, D (Mao, Dong); Wang, LR (Wang, Leiran); Duan, LN (Duan, Lina)

Source: APPLIED OPTICS  Volume: 50  Issue: 10  Pages: 1465-1468  DOI: 10.1364/AO.50.001465  Published: APR 1 2011  

Abstract: We report a passively mode-locked all-fiber laser with bidirectional pumping, emitting high-energy wave-breaking-free pulses. Experimental investigations show that forward and backward pump powers mainly contribute on the chirp and the nonlinear phase shift of pulses, respectively. Nonlinear chirp pulses with 50 nJ pulse energy, 340 ps duration at a 8.2MHz repetition rate are directly emitted from the all-fiber laser pumped by two 550 mW, 977 nm laser diodes. The pulses cannot be compressed to near the transform limit, showing that the chirp of pulses is nonlinear. (C) 2011 Optical Society of America

Accession Number: WOS:000289070300026

PubMed ID: 21460915

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Wu, Jiale 

JQV-3750-2023 

 

Mao, Dong 

G-5113-2014 

 

 

ISSN: 1559-128X

eISSN: 2155-3165

 


 

Record 143 of 209

Title: Influence of charge cloud size on performance of UV photon-counting imaging detector

Author(s): Liu, YA (Liu Yong-An); Yan, QR (Yan Qiu-Rong); Sheng, LZ (Sheng Li-Zhi); Zhao, FF (Zhao Fei-Fei); Hu, HJ (Hu Hui-Jun); Zhao, BS (Zhao Bao-Sheng)

Source: ACTA PHYSICA SINICA  Volume: 60  Issue: 4  Article Number: 048501  DOI: 10.7498/aps.60.048501  Published: APR 2011  

Abstract: The size of charge cloud is examined as a function of acceleration voltage, distance between MCP and anode, and MCP gain. The performance of photon counting imaging detector is significantly affected by charge cloud size. In this paper, the influence of charge cloud size on the performance of UV photon-counting imaging systems is investigated. Modulation distortion, "S" distortion and their cause are discussed. Then, Monte Carlo simulations for anode decode with different charge cloud sizes are carried out. And finally, the effects of acceleration voltage, distance between MCP and WSA, and MCP gain on the system performance are tested and some practical solutions of modulation and "S" distortion are suggested.

Accession Number: WOS:000289863100121

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

feng, chen 

JLM-8296-2023 

 

zhang, shijie 

HGF-0836-2022 

 

Sheng, Lizhi 

G-4282-2018 

 

 

ISSN: 1000-3290

 


 

Record 144 of 209

Title: Optical bistability in metal-insulator-metal plasmonic Bragg waveguides with Kerr nonlinear defects

Author(s): Lu, H (Lu, Hua); Liu, XM (Liu, Xueming); Gong, YK (Gong, Yongkang); Mao, D (Mao, Dong); Wang, LR (Wang, Leiran)

Source: APPLIED OPTICS  Volume: 50  Issue: 10  Pages: 1307-1311  DOI: 10.1364/AO.50.001307  Published: APR 1 2011  

Abstract: We numerically investigate the characteristics of the defect mode and the nonlinear effect of optical bistability in metal-insulator-metal (MIM) plasmonic Bragg grating waveguides with Kerr nonlinear defects. By means of finite-difference time-domain simulations, we find that the defect mode peak exhibits a blueshift and height-rise by enlarging the width of the defect layer, and it has a redshift and height-fall with the increase of the dielectric constant of defect layer. Obvious optical bistability is obtained in our waveguides with a length of less than 2 mu m. The results show that our structure could be applied to the design of all-optical switching in highly integrated optical circuits. (C) 2011 Optical Society of America

Accession Number: WOS:000289070300004

PubMed ID: 21460893

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Wu, Jiale 

JQV-3750-2023 

 

Mao, Dong 

G-5113-2014 

 

Lu, Hua 

G-3042-2014 

 

Gong, Yongkang 

F-1335-2017 

0000-0002-2830-4423 

 

ISSN: 1559-128X

eISSN: 2155-3165

 


 

Record 145 of 209

Title: Efficient HOG human detection

Author(s): Pang, YW (Pang, Yanwei); Yuan, YA (Yuan, Yuan); Li, XL (Li, Xuelong); Pan, J (Pan, Jing)

Source: SIGNAL PROCESSING  Volume: 91  Issue: 4  Pages: 773-781  DOI: 10.1016/j.sigpro.2010.08.010  Published: APR 2011  

Abstract: While Histograms of Oriented Gradients (HOG) plus Support Vector Machine (SVM) (HOG+SVM) is the most successful human detection algorithm, it is time-consuming. This paper proposes two ways to deal with this problem. One way is to reuse the features in blocks to construct the HOG features for intersecting detection windows. Another way is to utilize sub-cell based interpolation to efficiently compute the HOG features for each block. The combination of the two ways results in significant increase in detecting humans-more than five times better. To evaluate the proposed method, we have established a top-view human database. Experimental results on the top-view database and the well-known INRIA data set have demonstrated the effectiveness and efficiency of the proposed method. (C) 2010 Elsevier B.V. All rights reserved.

Accession Number: WOS:000286864700011

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Yuan, Yuan 

GVS-5120-2022 

 

Yuan, Yuan 

ABB-2379-2020 

 

Li, Xuelong 

Z-3785-2019 

 

li, xiang 

GWM-6319-2022 

 

Li, Xuelong 

ABF-3381-2020 

 

yuan, Yuan 

ISA-0923-2023 

 

Li, Xuelong 

 

0000-0002-0019-4197 

 

ISSN: 0165-1684

eISSN: 1872-7557

 


 

Record 146 of 209

Title: A 3D non-linear orientation prediction wavelet transform for interference hyperspectral images compression

Author(s): Wen, J (Wen, Jia); Ma, CW (Ma, Caiwen); Shui, PL (Shui, Penglang)

Source: OPTICS COMMUNICATIONS  Volume: 284  Issue: 7  Pages: 1770-1777  DOI: 10.1016/j.optcom.2010.11.069  Published: APR 1 2011  

Abstract: According to the characteristic of large aperture static interference imaging spectrometer (LASIS), a non-linear orientation prediction three-dimensional (3D) wavelet transform method is proposed in this paper on the basis of the 3D orientation prediction wavelet transform method proposed by Li, Ma and Wu in 2008 [1]. The method proposed in this paper still combines directional prediction into 3D lifting wavelet transformation, but compared with the 3D orientation prediction wavelet transform method, it made a breakthrough in the limitation that the orientation predicted must be a straight linear direction. The experimental results showed that this method improved the performance of wavelet obviously, especially on the LASIS image with quite severe and unstable directional characteristic as seen in the study of Ma and Ma (2009) [2]. Meanwhile, the characteristic of spectrum image recovered by the proposed method also possessed better performance. (C) 2010 Elsevier B.V. All rights reserved.

Accession Number: WOS:000288043700010

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Shui, Peng-Lang 

 

0000-0002-5921-5255 

 

ISSN: 0030-4018

 


 

Record 147 of 209

Title: An Adaptive VQ Algorithm Used in Interferential Multi-Spectral Image

Author(s): Wen, J (Wen Jia); Ma, CW (Ma Cai-wen); Shui, PL (Shui Peng-lang)

Source: SPECTROSCOPY AND SPECTRAL ANALYSIS  Volume: 31  Issue: 4  Pages: 1033-1037  DOI: 10.3964/j.issn.1000-0593(2011)04-1033-05  Published: APR 2011  

Abstract: In the present paper, an adaptive LBG VQ algorithm is proposed based on the point to line model for the expansion of LBG VQ algorithm which was proposed in 2009, and using the algorithm proposed in this paper can achieve less error quantification, and can avoid the increase in bits of the larger index generated by the point to line expansion of LBG VQ algorithm. This new algorithm was used in lossless compression of interferential multi-spectral LASIS image, and experiment shows that the adaptive LBG VQ algorithm can remarkably improve the lossless compression performance of interferential multi-spectral image, and that if using these VQ algorithms above after Dual-Direction Prediction, the compression ratio generated by the point to line expansion of LBG VQ algorithm will be a little less than that generated by conventional LBG VQ algorithm, and the compression ratio generated by the algorithm proposed in this paper will be much larger than that generated by conventional LBG VQ algorithm.

Accession Number: WOS:000291227500038

PubMed ID: 21714254

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Shui, Peng-Lang 

 

0000-0002-5921-5255 

 

ISSN: 1000-0593

 


 

Record 148 of 209

Title: Two-dimensional photon counting imaging detector based on a Vernier position sensitive anode readout

Author(s): Yan, QR (Yan Qiu-Rong); Zhao, BS (Zhao Bao-Sheng); Liu, YA (Liu Yong-An); Yang, H (Yang Hao); Sheng, LZ (Sheng Li-Zhi); Wei, YL (Wei Yong-Lin)

Source: CHINESE PHYSICS C  Volume: 35  Issue: 4  Pages: 368-373  DOI: 10.1088/1674-1137/35/4/009  Published: APR 2011  

Abstract: A two-dimensional photon counting imaging detector based on a Vernier position sensitive anode is reported. The decode principle and design of a two-dimensional Vernier anode are introduced in detail. A photon counting imaging system was built based on a Vernier anode. The image of very weak optical radiation can be reconstructed by image processing in a period of integration time. The resolution is superior to 100 mu m according to the resolution test. The detector may realize the imaging of very weak particle flow of high-energy photons, electrons and ions, so it can be used for high-energy physics, deep space exploration, spectral measurement and bio-luminescence detection.

Accession Number: WOS:000289040200009

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

zhang, shijie 

HGF-0836-2022 

 

feng, chen 

JLM-8296-2023 

 

Sheng, Lizhi 

G-4282-2018 

 

 

ISSN: 1674-1137

eISSN: 2058-6132

 


 

Record 149 of 209

Title: High power all-fiber structured supercontinuum source with variable spectral coverage

Author(s): Yang, Z (Yang, Z.); Hu, XH (Hu, X. H.); Wang, YS (Wang, Y. S.); Zhang, W (Zhang, W.); Zhao, W (Zhao, W.)

Source: LASER PHYSICS  Volume: 21  Issue: 4  Pages: 704-707  DOI: 10.1134/S1054660X11070310  Published: APR 2011  

Abstract: An all-fiber structured supercontinuum source based on chirped pulse amplification (CPA) technology and the use of nonlinear photonic crystal fiber was constructed. By experimentally varying fiber stretcher length in CPA laser source, we can change the spectral coverage and therefore the percentage of visible light in the produced supercontinuum at output of nonlinear photonic crystal fiber, while the average supercontinuum power always keeps at watts of level. The all-fiber structured feature and the capability of changing supercontinuum spectral coverage make this CPA system a promising implement for different applications that require different broad band spectrum.

Accession Number: WOS:000289295600017

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

zhang, yu 

HNS-5948-2023 

 

 

ISSN: 1054-660X

eISSN: 1555-6611

 


 

Record 150 of 209

Title: Partially Supervised Neighbor Embedding for Example-Based Image Super-Resolution

Author(s): Zhang, KB (Zhang, Kaibing); Gao, XB (Gao, Xinbo); Li, XL (Li, Xuelong); Tao, DC (Tao, Dacheng)

Source: IEEE JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING  Volume: 5  Issue: 2  Pages: 230-239  DOI: 10.1109/JSTSP.2010.2048606  Published: APR 2011  

Abstract: Neighbor embedding algorithm has been widely used in example-based super-resolution reconstruction from a single frame, which makes the assumption that neighbor patches embedded are contained in a single manifold. However, it is not always true for complicated texture structure. In this paper, we believe that textures may be contained in multiple manifolds, corresponding to classes. Under this assumption, we present a novel example-based image super-resolution reconstruction algorithm with clustering and supervised neighbor embedding (CSNE). First, a class predictor for low-resolution (LR) patches is learnt by an unsupervised Gaussian mixture model. Then by utilizing class label information of each patch, a supervised neighbor embedding is used to estimate high-resolution (HR) patches corresponding to LR patches. The experimental results show that the proposed method can achieve a better recovery of LR comparing with other simple schemes using neighbor embedding.

Accession Number: WOS:000288458100003

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

li, xiang 

GWM-6319-2022 

 

Li, Xuelong 

ABF-3381-2020 

 

Tao, Dacheng 

A-5449-2012 

0000-0001-7225-5449 

Zhang, Kai 

HWQ-4396-2023 

 

Li, Xuelong 

Z-3785-2019 

 

Li, Xuelong 

 

0000-0002-0019-4197 

 

ISSN: 1932-4553

eISSN: 1941-0484

 


 

Record 151 of 209

Title: Coexistence of strong and weak pulses in a fiber laser with largely anomalous dispersion

Author(s): Liu, XM (Liu, Xueming)

Source: OPTICS EXPRESS  Volume: 19  Issue: 7  Pages: 5874-5887  DOI: 10.1364/OE.19.005874  Published: MAR 28 2011  

Abstract: The coexistence of weakly sech-shaped solitons and strongly dissipative solitons is experimentally observed in an ultra-large net-anomalous-dispersion mode-locked fiber laser for the first time to author's best knowledge. Both sech-shaped and dissipative solitons appear to be the asymmetrically combined pulse state with one pulse component much smaller than the other. The energy of dissipative solitons is over three orders of magnitude larger than that of sech-shaped solitons. Two different types of pulse-shaping mechanisms coexist in the laser: one is the dissipative processes and the other is the balance between anomalous dispersion and nonlinear Kerr effect. Numerical simulations and analysis confirm the experimental observations. (c) 2011 Optical Society of America

Accession Number: WOS:000288852700017

PubMed ID: 21451612

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Wu, Jiale 

JQV-3750-2023 

 

 

ISSN: 1094-4087

 


 

Record 152 of 209

Title: Dissipative soliton generation/compression in compact all-fibre laser system

Author(s): Wang, LR (Wang, L. R.); Liu, XM (Liu, X. M.); Gong, YK (Gong, Y. K.); Mao, D (Mao, D.); Lu, H (Lu, H.)

Source: ELECTRONICS LETTERS  Volume: 47  Issue: 6  Pages: 392-U59  DOI: 10.1049/el.2010.3674  Published: MAR 17 2011  

Abstract: The generation and compression of dissipative-soliton (DS) pulses in a compact erbium-doped all-fibre laser system is investigated experimentally. The high-energy picosecond DSs can be dechirped to femtosecond pulses by a segment of singlemode fibre with the maximal compression factor of 122. It is found that the necessary dispersion to compress DSs is approximately proportional to their initial pulse durations, and the larger the spectrum width, the less the dispersion needed to dechirp the DSs.

Accession Number: WOS:000288892100025

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Lu, Hua 

G-3042-2014 

 

Mao, Dong 

G-5113-2014 

 

Wu, Jiale 

JQV-3750-2023 

 

Gong, Yongkang 

F-1335-2017 

0000-0002-2830-4423 

 

ISSN: 0013-5194

 


 

Record 153 of 209

Title: 3-Dimensional thermal analysis of Yb<SUP>3+</SUP>-doped gain guided and index-antiguided fiber amplifier

Author(s): Yan, KL (Yan Kun-Lun); Zhou, EY (Zhou En-Yu); Wei, W (Wei Wei); Peng, B (Peng Bo)

Source: OPTICS COMMUNICATIONS  Volume: 284  Issue: 6  Pages: 1626-1630  DOI: 10.1016/j.optcom.2010.11.033  Published: MAR 15 2011  

Abstract: In this paper, the thermal characteristics of gain-guided and index-antiguided (GG-IAG) fiber amplifier were investigated with a 3-D heat flow model, based on rate equations. From the simulation results, it is found that the longitudinal heat conduction has a very important influence on the GG-IAG fiber amplifier temperature distribution, and the GG-IAG fiber amplifier would be subjected to a more serious thermal problem. Finally, the influence of different pump directions, cooling methods, cladding radius and negative refractive index step on the temperature distribution has also been studied. (C) 2010 Elsevier B.V. All rights reserved.

Accession Number: WOS:000287628500027

ISSN: 0030-4018

eISSN: 1873-0310

 


 

Record 154 of 209

Title: LUT: A Lunar-based Ultraviolet Telescope

Author(s): Cao, L (Cao Li); Ruan, P (Ruan Ping); Cai, HB (Cai HongBo); Deng, JS (Deng JinSong); Hu, JY (Hu JingYao); Jiang, XJ (Jiang XiaoJun); Liu, ZH (Liu ZhaoHui); Qiu, YL (Qiu YuLei); Wang, J (Wang Jing); Wang, S (Wang Shen); Yang, JF (Yang JianFeng); Zhao, F (Zhao Fei); Wei, JY (Wei JianYan)

Source: SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY  Volume: 54  Issue: 3  Pages: 558-562  DOI: 10.1007/s11433-011-4255-7  Published: MAR 2011  

Abstract: The Lunar-based Ultraviolet Telescope (LUT) is a funded lunar-based ultraviolet telescope dedicated to continuously monitoring variable stars for as long as dozens of days and performing low Galactic latitude sky surveys. The slow and smooth spin of the Moon makes its step by step pointing strategy possible. A flat mirror mounted on a gimbal mount is configured to enlarge the sky coverage of the LUT. A Ritchey-Chretien telescope with a Nasmyth focus configuration is adopted to reduce the total length of the system. A UV enhanced back illuminated AIMO CCD 47-20 chip together with the low noise electric design will minimize the instrumental influence on the system. The preliminary proposal for astrometric calibration and photometric calibration are also presented.

Accession Number: WOS:000289006600028

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Yang, Jianfeng 

ABH-1554-2020 

0000-0002-0140-3675 

Deng, Jinsong 

A-9301-2015 

 

Yang, Hai 

JQI-4956-2023 

 

wang, jian 

GVS-0711-2022 

 

wang, yu 

IUQ-6654-2023 

 

 

ISSN: 1674-7348

eISSN: 1869-1927

 


 

Record 155 of 209

Title: Structural characterizations and the third-order nonlinear optical properties of poly(2,5-didecyloxy)phenylene films modified by N<SUP>+</SUP> ions implantation

Author(s): Gao, C (Gao, Chao); Du, WS (Du, Weisong); Qiu, SJ (Qiu, Shaojun); Lin, Q (Lin, Qun); Wu, HC (Wu, Hongcai); Liu, XZ (Liu, Xiaozeng); Guo, HY (Guo, Hongyan); Liu, JQ (Liu, Jianqun)

Source: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS  Volume: 269  Issue: 5  Pages: 513-518  DOI: 10.1016/j.nimb.2010.12.040  Published: MAR 1 2011  

Abstract: Poly(2,5-didecyloxy)phenylene (PDDOP) films implanted by 30 key nitrogen ions (N+) with the dose rang of 10(15)-10(17) ions/cm(2) were characterized by FTIR-ATR spectra, UV-VIS spectra and X-ray photoelectron spectroscopy, which showed that the C-H bonds of the PDDOP films were largely broken and new bonds like C=C,C=N and C N were formed as the increasing ion fluence. The third-order nonlinear optical susceptibilities (chi((3))) were measured by degenerate four-wave mixing (DFWM) technique at 532 nm. The results demonstrated that the (chi((3))) value of PDDOP films was maximized to 4.19 x 10(-11) esu at an ion dose of 1.15 x 10(17) ions/cm(2), which was 4.4 times larger than that of the pristine film. The enhanced third-order nonlinear properties may attribute to the enlarged expansion coefficient and the enhanced absorption coefficient of the bombarded films at proper N ions dose. (C) 2010 Elsevier B.V. All rights reserved.

Accession Number: WOS:000288735200001

ISSN: 0168-583X

eISSN: 1872-9584

 


 

Record 156 of 209

Title: Parallel two-step phase-shifting digital holograph microscopy based on a grating pair

Author(s): Gao, P (Gao, Peng); Yao, BL (Yao, Baoli); Harder, I (Harder, Irina); Min, JW (Min, Junwei); Guo, RL (Guo, Rongli); Zheng, JJ (Zheng, Juanjuan); Ye, T (Ye, Tong)

Source: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION  Volume: 28  Issue: 3  Pages: 434-440  DOI: 10.1364/JOSAA.28.000434  Published: MAR 2011  

Abstract: An optical configuration for parallel two-step phase-shifting digital holographic microscopy (DHM) based on a grating pair is proposed for the purpose of real-time phase microscopy. Orthogonally circularly polarized object and reference waves are diffracted twice by a pair of gratings, and two parallel copies for each beams come into being. Combined with polarization elements, parallel two-step phase-shifting holograms are obtained. Based on the proposed configuration, two schemes of DHM, i.e., slightly off-axis and on-axis DHM, have been implemented. The slightly off-axis DHM suppresses the dc term by subtracting the two phase-shifting holograms from each other, thus the requirement on the off-axis angle and sampling power of the CCD camera is reduced greatly. The on-axis DHM has the least requirement on the resolving power of the CCD camera, while it requires that the reference wave is premeasured and its intensity is no less than 2 times the maximal intensity of the object wave. (C) 2011 Optical Society of America

Accession Number: WOS:000288012400019

PubMed ID: 21383826

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Yao, Baoli 

AAB-4606-2021 

 

Ye, Tong 

A-8251-2010 

0000-0003-1017-6969 

Ye, Tong 

ABG-8560-2021 

0000-0003-1017-6969 

min, junwei 

HDO-7763-2022 

0000-0001-7931-9361 

 

ISSN: 1084-7529

 


 

Record 157 of 209

Title: Aurora image segmentation by combining patch and texture thresholding

Author(s): Gao, XB (Gao, Xinbo); Fu, R (Fu, Rong); Li, XL (Li, Xuelong); Tao, DC (Tao, Dacheng); Zhang, BC (Zhang, Beichen); Yang, HG (Yang, Huigen)

Source: COMPUTER VISION AND IMAGE UNDERSTANDING  Volume: 115  Issue: 3  Special Issue: SI  Pages: 390-402  DOI: 10.1016/j.cviu.2010.11.011  Published: MAR 2011  

Abstract: The proportion of aurora to the field-of-view in temporal series of all-sky images is an important index to investigate the evolvement of aurora. To obtain such an index, a crucial phase is to segment the aurora from the background of sky. A new aurora segmentation approach, including a feature extraction method and the segmentation algorithm, is presented in this paper. The proposed feature extraction method, called adaptive local binary patterns (ALBP), selects the frequently occurred patterns to construct the main pattern set, which avoids using the same pattern set to describe different texture structures in traditional local binary patterns. According to the different morphologies and different semantics of aurora, the segmentation algorithm is designed into two parts, texture part segmentation based on ALBP features and patch part segmentation based on modified Otsu method. As it is simple and efficient, our implementation is suitable for large-scale datasets. The experiments exhibited the segmentation effect of the proposed method is satisfactory from human visual aspect and segmentation accuracy. (C) 2010 Elsevier Inc. All rights reserved.

Accession Number: WOS:000287772400010

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

li, xiang 

GWM-6319-2022 

 

Li, Xuelong 

ABF-3381-2020 

 

Li, Xuelong 

Z-3785-2019 

 

cai, bo 

G-1491-2010 

 

Tao, Dacheng 

A-5449-2012 

0000-0001-7225-5449 

Zhang, Beichen 

 

0000-0002-0927-9568 

Li, Xuelong 

 

0000-0002-0019-4197 

 

ISSN: 1077-3142

eISSN: 1090-235X

 


 

Record 158 of 209

Title: All-optical wavelength multicasting exploiting cross-phase modulation in a dispersion-flattened nonlinear photonic crystal fiber

Author(s): Hui, ZQ (Hui, Z. Q.); Zhang, JG (Zhang, J. G.)

Source: LASER PHYSICS  Volume: 21  Issue: 3  Pages: 512-518  DOI: 10.1134/S1054660X11050094  Published: MAR 2011  

Abstract: An all-optical wavelength multicasting scheme with tunable output wavelength and channel numbers has been proposed and demonstrated based on cross-phase modulation (XPM) in a dispersion-flattened highly nonlinear photonic crystal fiber. We show that the input signal wavelength can be simultaneously converted to four different wavelengths by filtering the broadened sideband of the continuous-wave (CW) probe beams. The experiments are carried out to investigate into the wavelength tunability, and exploit the dynamic characteristics with variable input signal powers, the ability of multicasting channels scalable, and the relationship between the multicasting signal qualities with variable optical band-pass filter (OBPF) bandwidth. The results indicate that the proposed wavelength multicasting scheme has the advantages of simple structure, efficient operation in a wide wavelength range, as well as transparent to bit rates. Moreover, the system can be upgraded to generate more multicasting channels by increasing the number of CW probe beams.

Accession Number: WOS:000289798700020

ISSN: 1054-660X

 


 

Record 159 of 209

Title: Experimental observations of separation-changeable soliton pairs in a fiber laser mode-locked by nonlinear polarization rotation technique

Author(s): Li, XH (Li, Xiaohui); Liu, XM (Liu, Xueming); Hu, XH (Hu, Xiaohong); Wang, LR (Wang, Leiran); Gong, YK (Gong, Yongkang); Lu, U (Lu, Ua); Mao, D (Mao, Dong)

Source: JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS  Volume: 13  Issue: 2-4  Pages: 190-195  Published: MAR 2011  

Abstract: The soliton pairs with changeable temporal separation in a passively mode-locked fiber laser are investigated experimentally. Temporal separations of pulses are as large as tens of nanoseconds, which are almost four orders of magnitudes larger than the pulse duration. The mechanism of the changeable separation mainly attributes to the variation of the linear phase delay in the cavity. Soliton pairs with large temporal separations and their variable characteristics are different from the operation of typical harmonic or bound state of solitons. These novel states in this report can be considered as the quasi-bound states.

Accession Number: WOS:000290738600004

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Mao, Dong 

G-5113-2014 

 

Wu, Jiale 

JQV-3750-2023 

 

Li, Xiaohui 

J-9580-2012 

0000-0002-5600-3820 

Gong, Yongkang 

F-1335-2017 

0000-0002-2830-4423 

 

ISSN: 1454-4164

 


 

Record 160 of 209

Title: Fabrication and characterization of a water-free mid-infrared fluorotellurite glass

Author(s): Lin, AX (Lin, Aoxiang); Ryasnyanskiy, A (Ryasnyanskiy, Aleksandr); Toulouse, J (Toulouse, Jean)

Source: OPTICS LETTERS  Volume: 36  Issue: 5  Pages: 740-742  DOI: 10.1364/OL.36.000740  Published: MAR 1 2011  

Abstract: Using a physical and chemical dehydration technique and a high-pressure, ultradry O-2 atmosphere in a semiclosed steel-chamber furnace, we fabricated a group of fluorotellurite glasses with a composition of (90-x)TeO2-xZnF(2)-10Na(2)O (mol.%, x 0-30). For x 30, no OH absorption was observed in the range of 0.38-6.1 mu m. This is the first report of a water-free mid-IR fluorotellurite glass, to our knowledge, offering the common advantages of a robust oxide glass and an IR-transparent fluoride one. Besides optimized linear transmittance and absorption, the nonlinear refractive indices and Raman gain coefficients are reduced. These results are discussed in the context of mid-IR high-power laser generation and transmission. (C) 2011 Optical Society of America

Accession Number: WOS:000287912500049

PubMed ID: 21368967

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Lin, Aoxiang 

C-9978-2009 

 

 

ISSN: 0146-9592

eISSN: 1539-4794

 


 

Record 161 of 209

Title: Summarizing tourist destinations by mining user-generated travelogues and photos

Author(s): Pang, YW (Pang, Yanwei); Hao, QA (Hao, Qiang); Yuan, YA (Yuan, Yuan); Hu, TJ (Hu, Tanji); Cai, R (Cai, Rui); Zhang, L (Zhang, Lei)

Source: COMPUTER VISION AND IMAGE UNDERSTANDING  Volume: 115  Issue: 3  Special Issue: SI  Pages: 352-363  DOI: 10.1016/j.cviu.2010.10.010  Published: MAR 2011  

Abstract: Automatically summarizing tourist destinations with both textual and visual descriptions is highly desired for online services such as travel planning, to facilitate users to understand the local characteristics of tourist destinations. Travelers are contributing a great deal of user-generated travelogues and photos on the Web, which contain abundant travel-related information and cover various aspects (e.g., landmarks, styles, activities) of most locations in the world. To leverage the collective knowledge of travelers for destination summarization, in this paper we propose a framework which discovers location-representative tags from travelogues and then select relevant and representative photos to visualize these tags. The learnt tags and selected photos are finally organized appropriately to provide an informative summary which describes a given destination both textually and visually. Experimental results based on a large collection of travelogues and photos show promising results on destination summarization. (C) 2010 Elsevier Inc. All rights reserved.

Accession Number: WOS:000287772400007

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Yuan, Yuan 

GVS-5120-2022 

 

yuan, Yuan 

ISA-0923-2023 

 

Yuan, Yuan 

ABB-2379-2020 

 

Cai, Rui 

GRO-1869-2022 

 

 

ISSN: 1077-3142

eISSN: 1090-235X

 


 

Record 162 of 209

Title: Synthesis, crystal structure and photophysical properties of a neodymium trifluoroacetate complex with 2,2′-bipyridine

Author(s): She, JB (She Jiangbo); Li, DD (Li Dongdong); Hou, CQ (Hou Chaoqi); Yang, WZ (Yang Wenzheng); Wei, W (Wei Wei); Peng, B (Peng Bo)

Source: JOURNAL OF RARE EARTHS  Volume: 29  Issue: 3  Pages: 193-197  DOI: 10.1016/S1002-0721(10)60429-2  Published: MAR 2011  

Abstract: The neodymium trifluoroacetate complexes were synthesized and characterized by single-crystal X-ray diffraction for [Nd(CF3COO)(3)center dot Bpy center dot(H2O)(3)]Bpy (1), elemental and TG analysis, FT-IR spectra, and PL spectra for Nd(CF3COO)(3)center dot Bpy (2) (Bpy: 2,2'-bipyridine). The most interesting feature of the crystal structure for 1 is that it comprises a coordinated 2,2'-bipyridine molecule and an out-sphere 2,2'-bipyridine molecule. At the same time, the C-O distances appeared average which indicates the three atoms of carboxylato forming electron-conjugate system. Hydrogen bond and pi-pi-stacking link the binuclear to two-dimensional sheet. The optical spectra for 2 exhibited that the complex possessed typical Nd (III) ion absorption and photoluminescence emission. The emission cross-section of F-4(3/2)-> I-4(11/2) fluorescence transition (3.63x10(-20) cm(2)) was comparable with some laser glasses, which indicated good radiative properties of this neodymium trifluoroacetate complex in liquid matrix. The thermal analysis indicated that it was quite stable to heat.

Accession Number: WOS:000289940500001

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Yang, Wenzheng 

H-6022-2011 

 

 

ISSN: 1002-0721

 


 

Record 163 of 209

Title: A fast and low complexity approach for H.264/AVC intra mode decision

Author(s): Su, XQ (Su, XiuQin); Ji, L (Ji, Lei); Li, XA (Li, Xiang)

Source: MULTIMEDIA TOOLS AND APPLICATIONS  Volume: 52  Issue: 1  Pages: 65-76  DOI: 10.1007/s11042-009-0452-z  Published: MAR 2011  

Abstract: As one of the main features of H.264/AVC, intra prediction coding technique acts as a basis for encoding performance and efficiency. In official reference software Joint Model (JM), it employs the rate distortion optimization (RDO) technique to get to the best encoding performance. By full searching (FS) all of the candidate modes under the rule of RDO, peak-signal-noise-rate (PSNR) decreases to a very low level, but at the same time, the complexity of calculation increases a lot. Many researchers had devoted to searching the fast algorithm which can decrease the complexity, and had designed so many excellent and intelligent fast algorithms. In this paper we introduced a low complexity and fast approach for H.264/AVC intra prediction algorithm. The new approach is based on reducing the number of candidate modes for further RDO calculation, and decreasing the computational complicacy. It can decide the interpolation direction accurately by calculating the directional pixel-value differences (DPD) of target block, and then do statistic with the obtained values to choose the most probable modes. The experimental results demonstrate that the proposed algorithm can achieve more than 70% time saving than JM, but only a tiny degradation of encoding performance is brought in.

Accession Number: WOS:000286990500006

Conference Title: 2nd International Congress on Image and Signal Processing

Conference Date: OCT 17-19, 2009

Conference Location: Tianjin, PEOPLES R CHINA

Conference Sponsors: Tianjin Univ Technol, IEEE Engn Med & Biol Soc (EMBS)

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Zhou, Yue 

JHS-8791-2023 

 

 

ISSN: 1380-7501

eISSN: 1573-7721

 


 

Record 164 of 209

Title: Single-image super-resolution via local learning

Author(s): Tang, Y (Tang, Yi); Yan, PK (Yan, Pingkun); Yuan, Y (Yuan, Yuan); Li, XL (Li, Xuelong)

Source: INTERNATIONAL JOURNAL OF MACHINE LEARNING AND CYBERNETICS  Volume: 2  Issue: 1  Pages: 15-23  DOI: 10.1007/s13042-011-0011-6  Published: MAR 2011  

Abstract: Nearest neighbor-based algorithms are popular in example-based super-resolution from a single image. The core idea behind such algorithms is that similar images are close in the sense of distance measurement. However, it is well known in the field of machine learning and statistical learning theory that the generalization of the nearest neighbor-based estimation is poor, when complex or high dimensional data are considered. To improve the power of the nearest neighbor-based algorithms in single-image based super-resolution, a local learning method is proposed in this paper. Similar to the nearest neighbor-based algorithms, a local training set is generated according to the similarity between the training samples and a given test sample. For super-resolving the given test sample, a local regression function is learned on the local training set. The generalization of nearest neighbor-based algorithms can be enhanced by the process of local regression. Based on such an idea, we propose a novel local-learning-based algorithm, where kernel ridge regression algorithm is used in local regression for its well generalization. Some experimental results verify the effectiveness and efficiency of the local learning algorithm in single-image based super-resolution.

Accession Number: WOS:000209203100002

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Yuan, Yuan 

GVS-5120-2022 

 

Yuan, Yuan 

ABB-2379-2020 

 

li, xiang 

GWM-6319-2022 

 

Li, Xuelong 

ABF-3381-2020 

 

Yan, Pingkun 

W-5059-2019 

0000-0002-9779-2141 

Li, Xuelong 

Z-3785-2019 

 

yuan, Yuan 

ISA-0923-2023 

 

Li, Xuelong 

 

0000-0002-0019-4197 

 

ISSN: 1868-8071

eISSN: 1868-808X

 


 

Record 165 of 209

Title: ULTRA-HIGH ON/OFF RATIO OPTICAL TRIGGER BASED ON SOI-SOA WAVEGUIDE

Author(s): Wu, JW (Wu, Jian-Wei); Tsao, SL (Tsao, Shyh-Lin)

Source: JOURNAL OF RUSSIAN LASER RESEARCH  Volume: 32  Issue: 2  Pages: 144-152  DOI: 10.1007/s10946-011-9200-8  Published: MAR 2011  

Abstract: We present a device able to perform an all-optical trigger by utilizing the cascaded silicon-on-insulator (SOI) and semiconductor-optical-amplifier (SOA) optical waveguides, where both the controlling pulse and the signal pulse are co-propagating along the device. The results of numerical simulations show that the all-optical trigger behavior with ultra-high on/off ratio can be easily achieved by adjusting the device parameters. To improve and optimize the optical trigger operation, the negative initial delay (the signal pulse before the controlling pulse) and the positive initial delay (the signal pulse after the controlling pulse) are considered for performing the optical trigger operation.

Accession Number: WOS:000291042400007

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Wu, Jian 

AAU-5221-2020 

0000-0001-9933-7364 

Wu, Jian 

AAU-5221-2020 

0000-0002-3394-1507 

 

ISSN: 1071-2836

eISSN: 1573-8760

 


 

Record 166 of 209

Title: Adaptively Learning Local Shape Statistics for Prostate Segmentation in Ultrasound

Author(s): Yan, PK (Yan, Pingkun); Xu, S (Xu, Sheng); Turkbey, B (Turkbey, Baris); Kruecker, J (Kruecker, Jochen)

Source: IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING  Volume: 58  Issue: 3  Pages: 633-641  DOI: 10.1109/TBME.2010.2094195  Part: 1  Published: MAR 2011  

Abstract: Automatic segmentation of the prostate from 2-D transrectal ultrasound (TRUS) is a highly desired tool in many clinical applications. However, it is a very challenging task, especially for segmenting the base and apex of the prostate due to the large shape variations in those areas compared to the midgland, which leads many existing segmentation methods to fail. To address the problem, this paper presents a novel TRUS video segmentation algorithm using both global population-based and patient-specific local shape statistics as shape constraint. By adaptively learning shape statistics in a local neighborhood during the segmentation process, the algorithm can effectively capture the patient-specific shape statistics and quickly adapt to the local shape changes in the base and apex areas. The learned shape statistics is then used as the shape constraint in a deformable model for TRUS video segmentation. The proposed method can robustly segment the entire gland of the prostate with significantly improved performance in the base and apex regions, compared to other previously reported methods. Our method was evaluated using 19 video sequences obtained from different patients and the average mean absolute distance error was 1.65 +/-.0.47 mm.

Accession Number: WOS:000287661900019

PubMed ID: 21097373

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Yan, Pingkun 

W-5059-2019 

0000-0002-9779-2141 

 

ISSN: 0018-9294

eISSN: 1558-2531

 


 

Record 167 of 209

Title: Femtosecond laser machining characteristics in a single-crystal superalloy

Author(s): Zhang, W (Zhang Wei); Cheng, GH (Cheng Guanghua); Feng, Q (Feng Qiang); Cao, LM (Cao Lamei)

Source: RARE METALS  Volume: 30  Special Issue: SI  Pages: 639-642  DOI: 10.1007/s12598-011-0362-z  Supplement: 1  Published: MAR 2011  

Abstract: Femtosecond laser machining characteristics of a nickel-base single-crystal superalloy were investigated as a function of laser fluence and the number of laser pulses. The significant decrease of recast layer for femtosecond laser machining was observed compared with that for nanosecond laser machining. The ablation thresholds for 1, 10, and 100 femtosecond pulse exposure were measured. Two ablation regions of the ablated crater were observed. The change of the ablation diameter and depth depended on the laser fluence and the number of laser pulses. And higher laser fluence could enable a faster rate of laser-machining.

Accession Number: WOS:000303126300135

ISSN: 1001-0521

 


 

Record 168 of 209

Title: Spectral Discrimination Method Information Divergence Combined with Gradient Angle

Author(s): Zhang, XB (Zhang Xiu-bao); Yuan, Y (Yuan Yan); Jing, JJ (Jing Juan-juan); Sun, CM (Sun Cheng-ming); Wang, QA (Wang Qian)

Source: SPECTROSCOPY AND SPECTRAL ANALYSIS  Volume: 31  Issue: 3  Pages: 853-857  DOI: 10.3964/j.issn.1000-0593(2011)03-0853-05  Published: MAR 2011  

Abstract: The present paper proposes a spectral discrimination method combining spectral information divergence with spectral gradient angle (SIDX tan(SGA(pi/2))) which overcomes the shortages of the existing methods which can not take the whole spectral shape and local characteristics into account simultaneously. Using the simulation spectra as input data, according to the inter-ferogram acquirement principle and spectrum recovery algorithm of the temporally and spatially modulated Fourier transform imaging spectrometer (TSMFTIS), we simulated the distortion spectra recovery process of the TMSFTIS in different maximum mix ratio and distinguished the difference between the recovered spectra and the true spectrum by different spectral discrimination methods. The experiment results show that the SID X tan(SGA(pi/2)) can not only identify the similarity of the whole spectral shapes, but also distinguish local differences of the spectral characteristics. A comparative study was conducted among the different discrimination methods. The results have validated that the SIDX tan(SGA(pi/2)) has a significant improvement in the discriminatory ability.

Accession Number: WOS:000287987200062

PubMed ID: 21595255

ISSN: 1000-0593

 


 

Record 169 of 209

Title: A signal to noise ratio measurement for single shot laser pulses by use of an optical Kerr gate

Author(s): He, JF (He, Junfang); Zhu, CJ (Zhu, Changjun); Wang, YS (Wang, Yishan); Cheng, GH (Cheng, Guanghua); Zou, KS (Zou, Kuaisheng); Wu, DK (Wu, Dengke); Xie, XD (Xie, Xudong)

Source: OPTICS EXPRESS  Volume: 19  Issue: 5  Pages: 4438-4443  DOI: 10.1364/OE.19.004438  Published: FEB 28 2011  

Abstract: A new design of signal to noise ratio (SNR) measurement for single shot laser pulses, based on a stepped grating and an optical Kerr gate (OKG), is presented. A single shot laser pulse was simultaneously divided into multi-pulses in both time and space. Intensity-space distribution of laser multi-pulses, which was recorded with a CCD detector, was transformed into intensity-time distribution. Time resolution of 1.95 ps and detection time range of 42.9 ps were obtained, respectively. Moreover, optical spatial localization attenuators were introduced into optical path to acquire wide dynamic range in the SNR measurement and, as a result, the dynamic range has been extended remarkably. (C) 2011 Optical Society of America

Accession Number: WOS:000288870300068

PubMed ID: 21369275

ISSN: 1094-4087

 


 

Record 170 of 209

Title: Dual-wavelength step-like pulses in an ultra-large negative-dispersion fiber laser

Author(s): Mao, D (Mao, Dong); Liu, XM (Liu, Xueming); Wang, LR (Wang, Leiran); Lu, H (Lu, Hua); Duan, LN (Duan, Lina)

Source: OPTICS EXPRESS  Volume: 19  Issue: 5  Pages: 3996-4001  DOI: 10.1364/OE.19.003996  Published: FEB 28 2011  

Abstract: We report on experimental observation of dual-wavelength steplike pulses delivered from an erbium-doped fiber laser operating in ultralarge negative-dispersion regime. The step-like pulses consist of two rectangular pulses with different energies, durations as well as optical spectra, and are distinct from the conventional multi-solitons or bound-state solitons in that each pulse holds the same property. We find the weaker (or stronger) rectangular pulse in step-like pulses is more sensitive to the backward (or forward) pump while is less sensitive to the forward (or backward) pump. Our results demonstrate that the dual-wavelength operation results from the combination of fiber dispersion, fiber birefringence, as well as cavity filtering effect, and the intensity difference between rectangular pulses can be attributed to different gain characteristics of the forward and backward pump. (C) 2011 Optical Society of America

Accession Number: WOS:000288870300020

PubMed ID: 21369226

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Lu, Hua 

G-3042-2014 

 

Mao, Dong 

G-5113-2014 

 

Mao, Dong 

K-6333-2016 

 

Wu, Jiale 

JQV-3750-2023 

 

 

ISSN: 1094-4087

 


 

Record 171 of 209

Title: Abrupt transition from wavelength structure to subwavelength structure in a single-crystal superalloy induced by femtosecond laser

Author(s): Zhang, W (Zhang, Wei); Cheng, GH (Cheng, Guanghua); Feng, QA (Feng, Qiang); Cao, LM (Cao, Lamei); Wang, FP (Wang, Fengping); Hui, RQ (Hui, Rongqing)

Source: APPLIED SURFACE SCIENCE  Volume: 257  Issue: 9  Pages: 4321-4324  DOI: 10.1016/j.apsusc.2010.12.050  Published: FEB 15 2011  

Abstract: The abrupt transition from low-spatial-frequency laser-induced periodic surface structure (LSFL) to high-spatial-frequency laser-induced periodic surface structure (HSFL) in single-crystal superalloy CMSX-4 during femtosecond laser irradiation has been reported. Microstructural investigations indicate that the transition was initiated by the generation of new grooves on the main ridges of LSFL ripples. This transition resulted in the period of HSFL nearly equal to half of LSFL period. Furthermore, the relationship between both LSFL and HSFL and their parametric dependence was established. The microstructural observation of the abrupt transition provides a morphological evidence of second harmonic generation being responsible for the formation of HSFL. (c) 2010 Elsevier B.V. All rights reserved.

Accession Number: WOS:000286459600084

ISSN: 0169-4332

eISSN: 1873-5584

 


 

Record 172 of 209

Title: General coupled-mode analysis for gain-guided, index-antiguided fibers, and index-guided fibers

Author(s): Zhou, EY (Zhou, Enyu); Yan, KL (Yan, Kunlun); Zhao, BY (Zhao, Baoyin); Wang, YS (Wang, Yishan); Wei, W (Wei, Wei); Peng, B (Peng, Bo)

Source: OPTICS COMMUNICATIONS  Volume: 284  Issue: 4  Pages: 1034-1037  DOI: 10.1016/j.optcom.2010.10.067  Published: FEB 15 2011  

Abstract: Coupling properties of two gain-guided index-antiguided (GG + IAG) fibers or GG+IAG fibers and index-guided (IG) fibers were investigated by the further general coupled mode theory The theory can explain any situation of two fiber coupling The interesting results were obtained by the numerical computation method For two GG + IAG fiber coupling total power was decreased as rising real-valued refractive-index difference (real part of refractive-index difference between core and cladding RVRID) while the power of one GG + IAG fiber was damped oscillations with Increased core separation In the GG + IAG fiber and IG fiber coupler the variation of the RVRID could change coupling characteristics These results are different from two IG fibers coupling and the general coupled-mode theory may provide meaningful references for new concepts of directional coupler and pumping technology of GG+IAG fiber Crown Copynght (C) 2010 Published by Elsevier BV All rights reserved

Accession Number: WOS:000285861000025

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Zhao, Baoyin 

GQH-1967-2022 

 

 

ISSN: 0030-4018

eISSN: 1873-0310

 


 

Record 173 of 209

Title: Ultrafast all-optical switching in nanoplasmonic waveguide with Kerr nonlinear resonator

Author(s): Lu, H (Lu, Hua); Liu, XM (Liu, Xueming); Wang, LR (Wang, Leiran); Gong, YK (Gong, Yongkang); Mao, D (Mao, Dong)

Source: OPTICS EXPRESS  Volume: 19  Issue: 4  Pages: 2910-2915  DOI: 10.1364/OE.19.002910  Published: FEB 14 2011  

Abstract: A novel ultrafast all-optical switching based on metal-insulator-metal nanoplasmonic waveguide with a Kerr nonlinear resonator is proposed and investigated numerically. With the finite-difference time-domain simulations, it is demonstrated that an obvious optical bistability of the signal light appears by varying the control-light intensity, and an excellent switching effect is achieved. This bistability originates from the intensity-dependent change induced in the dielectric constant of Kerr nonlinear material filled in the nanodisk resonator. It is found that the proposed all-optical switching exhibits femtosecond-scale feedback time. (C) 2011 Optical Society of America

Accession Number: WOS:000288860000009

PubMed ID: 21369113

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Lu, Hua 

G-3042-2014 

 

Mao, Dong 

G-5113-2014 

 

Wu, Jiale 

JQV-3750-2023 

 

Gong, Yongkang 

F-1335-2017 

0000-0002-2830-4423 

 

ISSN: 1094-4087

 


 

Record 174 of 209

Title: Tunable multi-channel wavelength demultiplexer based on MIM plasmonic nanodisk resonators at telecommunication regime

Author(s): Wang, GX (Wang, Guoxi); Lu, H (Lu, Hua); Liu, XM (Liu, Xueming); Mao, D (Mao, Dong); Duan, LN (Duan, Lina)

Source: OPTICS EXPRESS  Volume: 19  Issue: 4  Pages: 3513-3518  DOI: 10.1364/OE.19.003513  Published: FEB 14 2011  

Abstract: The tunable multi-channel wavelength demultiplexer (WDM) based on metal-insulator-metal plasmonic nanodisk resonators is designed and numerically investigated by utilizing Finite-Difference Time-Domain (FDTD) simulations. It is found that the channel wavelength of WDM is easily tuned by changing the geometrical parameters of the structure and the material filled in the nanodisk resonator. The multi-channel WDM structure consisting of a plasmonic waveguide and several nanodisk resonators increases the transmission up to 70% at telecommunication regime, which is two times higher than the results reported in a recent literature [Opt. Express 18, 11111 (2010)]. Our WDM can find important potential applications in highly integrated optical circuits. (C) 2011 Optical Society of America

Accession Number: WOS:000288860000070

PubMed ID: 21369174

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Chen, Feng 

JQW-8742-2023 

 

Mao, Dong 

G-5113-2014 

 

Wu, Jiale 

JQV-3750-2023 

 

Lu, Hua 

G-3042-2014 

 

 

ISSN: 1094-4087

 


 

Record 175 of 209

Title: Distributed Temperature Sensing System Based on Rayleigh Scattering BOTDA

Author(s): Cui, QS (Cui, Qingsong); Pamukcu, S (Pamukcu, Sibel); Lin, AX (Lin, Aoxiang); Xiao, W (Xiao, Wen); Herr, D (Herr, Douglas); Toulouse, J (Toulouse, Jean); Pervizpour, M (Pervizpour, Mesut)

Source: IEEE SENSORS JOURNAL  Volume: 11  Issue: 2  Pages: 399-403  DOI: 10.1109/JSEN.2010.2066558  Published: FEB 2011  

Abstract: A distributed temperature sensor based on Rayleigh scattering Brillouin optical time domain analysis (Rayleigh-BOTDA) is proposed in this paper. The sensor uses Rayleigh backscattering effect of microwave modulated pulse base sidebands as probe wave and a high sensitive photon counting detector for Brillouin signal intensity detection. Compared with a conventional BOTDA system, the Rayleigh-BOTDA effectively suppresses polarization-induced signal fluctuation resulting in improved signal intensity. The experimental scheme presented is simplified by using a single laser with one-end access. The temperature accuracy of the new sensing system was demonstrated as 1 degrees C on spatial resolution of 3 m.

Accession Number: WOS:000284364500020

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Lin, Aoxiang 

C-9978-2009 

 

Pamukcu, Sibel 

O-4380-2016 

0000-0002-8934-6467 

 

ISSN: 1530-437X

 


 

Record 176 of 209

Title: Generation of 10-GHz ultra-short pulses with low time jitter in an actively mode-locked fiber laser

Author(s): Feng, H (Feng, H.); Zhao, W (Zhao, W.); Yan, S (Yan, S.); Xie, XP (Xie, X. P.)

Source: LASER PHYSICS  Volume: 21  Issue: 2  Pages: 404-409  DOI: 10.1134/S1054660X11030017  Published: FEB 2011  

Abstract: We have experimentally achieved the 8.3-ps ultra-short pulse at 10 GHz repetition rate with the time jitter as low as 590 fs in an actively mode-locked fiber ring laser. The ring-cavity laser is mode-locked by a semiconductor optical amplifier based on cross-gain modulation. The external CW source is modulated with radio frequency signal by an amplitude modulator as the external optical pulses and, then, injected into the fiber ring cavity to achieve active mode locking. Further investigating the laser output characteristics, it indicates that the linewidth of employed CW source affects properties of the generated ultra-short pulse, such as phase noise and time jitter. Ultra-short pulse at high repetition rate with low time jitter can be generated by the optimization of CW laser source.

Accession Number: WOS:000287525900031

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Zhang, wen 

ITT-1192-2023 

 

zhao, wei 

IQS-1144-2023 

 

Yan, Shuangyi 

H-7233-2019 

0000-0002-5021-2840 

 

ISSN: 1054-660X

 


 

Record 177 of 209

Title: Optimized synthesis of fiber Bragg gratings with triangular spectrum for wavelength-interrogation application

Author(s): Gong, YK (Gong, Yongkang); Liu, XM (Liu, Xueming); Wang, LR (Wang, Leiran)

Source: OPTICAL ENGINEERING  Volume: 50  Issue: 2  Article Number: 024401  DOI: 10.1117/1.3533030  Published: FEB 2011  

Abstract: A novel method for synthesizing arbitrary-shape triangular-spectrum fiber Bragg gratings (TS-FBGs) is proposed. It involves the use of a discrete layer peeling method for exploiting initial guess and a simulated annealing method for optimizing the desired grating parameter. By comparing it to the reported TS-FBGs synthesis methods, the proposed method has advantages of reducing the maximum index modulation and smoothing index modulation profile simultaneously. We employ the proposed method to synthesize FBGs with symmetric, asymmetric, and right-angled triangular spectrum, all of which have the low and smooth index modulation profiles. The synthesized gratings can act simple and cost-effective wavelength-interrogation devices in optical sensor systems. (c) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.3533030]

Accession Number: WOS:000287864600015

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Wu, Jiale 

JQV-3750-2023 

 

Gong, Yongkang 

F-1335-2017 

0000-0002-2830-4423 

 

ISSN: 0091-3286

eISSN: 1560-2303

 


 

Record 178 of 209

Title: Unidirectional manipulation of surface plasmon polariton by dual-nanocavity in a T-shaped waveguide

Author(s): Gong, YK (Gong, Yongkang); Liu, XM (Liu, Xueming); Wang, LR (Wang, Leiran); Zhang, YN (Zhang, Yani)

Source: OPTICS COMMUNICATIONS  Volume: 284  Issue: 3  Pages: 795-798  DOI: 10.1016/j.optcom.2010.09.074  Published: FEB 1 2011  

Abstract: A structure of two dimensional T-shaped metal-insulator-metal waveguide with dual-nanocavity is proposed The two nanocavities located at each side of the slit on the lower metallic surface act as band rejection filters and are capable of stopping the surface plasmon polaritons (SPPs) at the resonant wavelengths The Fabry-Perot interferometry theory and the Finite-Difference-Time-Domain method are utilized to investigate the proposed waveguide The numerical results demonstrate the realization of miniaturized photonic devices for effectively switching the SPPs propagation between the left and right waveguides in one direction (C) 2010 Elsevier B V All rights reserved

Accession Number: WOS:000285678600015

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Wu, Jiale 

JQV-3750-2023 

 

Gong, Yongkang 

F-1335-2017 

0000-0002-2830-4423 

 

ISSN: 0030-4018

eISSN: 1873-0310

 


 

Record 179 of 209

Title: A simulation experiment system for X-ray pulsar based navigation

Author(s): Hu, HJ (Hu Hui-Jun); Zhao, BS (Zhao Bao-Sheng); Sheng, LZ (Sheng Li-Zhi); Yan, QR (Yan Qiu-Rong)

Source: ACTA PHYSICA SINICA  Volume: 60  Issue: 2  Article Number: 029701  DOI: 10.7498/aps.60.029701  Published: FEB 2011  

Abstract: A simulation experiment system for X-ray pulsar based navigation is setup in order to study the key technologies of Xray pulsar navigation. The system consists of X-ray pulsar source generator, super sensitive X-ray photon counting detector, charge sensitive amplifier, shaping amplifier, time measurement, X-ray pulse profile reconstruction and pulse time of arrival (TOA) measurement. The system can simulate the X-ray pulsar source with different intensities, period and pulse profile. The TOA of individual X-ray photon is recorded, the pulse profile is reconstructed with these data. And by comparing the measured pulse profile with the standard pulse profile of the X-ray pulsar source generator, the pulse TOA is calculated. The construction and the principle of the simulation experiment system are introduced and experiment results are presented.

Accession Number: WOS:000287947000126

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

feng, chen 

JLM-8296-2023 

 

zhang, shijie 

HGF-0836-2022 

 

Sheng, Lizhi 

G-4282-2018 

 

 

ISSN: 1000-3290

 


 

Record 180 of 209

Title: Biologically Inspired Features for Scene Classification in Video Surveillance

Author(s): Huang, KQ (Huang, Kaiqi); Tao, DC (Tao, Dacheng); Yuan, YA (Yuan, Yuan); Li, XL (Li, Xuelong); Tan, TN (Tan, Tieniu)

Source: IEEE TRANSACTIONS ON SYSTEMS MAN AND CYBERNETICS PART B-CYBERNETICS  Volume: 41  Issue: 1  Pages: 307-313  DOI: 10.1109/TSMCB.2009.2037923  Published: FEB 2011  

Abstract: Inspired by human visual cognition mechanism, this paper first presents a scene classification method based on an improved standard model feature. Compared with state-of-the-art efforts in scene classification, the newly proposed method is more robust, more selective, and of lower complexity. These advantages are demonstrated by two sets of experiments on both our own database and standard public ones. Furthermore, occlusion and disorder problems in scene classification in video surveillance are also first studied in this paper.

Accession Number: WOS:000286388300025

PubMed ID: 20100675

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Yuan, Yuan 

ABB-2379-2020 

 

Tao, Dacheng 

A-5449-2012 

0000-0001-7225-5449 

Li, Xuelong 

Z-3785-2019 

 

Yuan, Yuan 

GVS-5120-2022 

 

li, xiang 

GWM-6319-2022 

 

Li, Xuelong 

ABF-3381-2020 

 

yuan, Yuan 

ISA-0923-2023 

 

Li, Xuelong 

 

0000-0002-0019-4197 

Wang, Yunlong 

 

0000-0002-3535-308X 

 

ISSN: 1083-4419

eISSN: 1941-0492

 


 

Record 181 of 209

Title: Video-rate wide-field coherent anti-Stokes Raman scattering microscopy with collinear nonphase-matching illumination

Author(s): Lei, M (Lei, Ming); Winterhalder, M (Winterhalder, Martin); Selm, R (Selm, Romedi); Zumbusch, A (Zumbusch, Andreas)

Source: JOURNAL OF BIOMEDICAL OPTICS  Volume: 16  Issue: 2  Article Number: 021102  DOI: 10.1117/1.3533707  Published: FEB 2011  

Abstract: A simple scheme for video-rate wide-field coherent anti-Stokes Raman scattering (CARS) microscopy is presented. The method is based on collinear nonphase-matching illumination. The mechanisms leading to CARS signal generation are investigated. We find that refraction-mediated phase-matching is the main effect. Video-rate wide-field CARS microscopy of polystyrene beads and CARS wide-field images of C. elegans embryos are shown, and the capabilities and the limitations of the scheme are discussed. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI:10.1117/1.3533707]

Accession Number: WOS:000288939200009

PubMed ID: 21361665

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Lei, Ming 

JAD-1050-2023 

 

Zumbusch, Andreas 

 

0000-0002-3492-0011 

 

ISSN: 1083-3668

eISSN: 1560-2281

 


 

Record 182 of 209

Title: Effect of polarization on the evolution of electromagnetic hollow Gaussian Schell-model beam

Author(s): Long, XW (Long, Xuewen); Lu, KQ (Lu, Keqing); Zhang, YH (Zhang, Yuhong); Guo, JB (Guo, Jianbang); Li, KH (Li, Kehao)

Source: OPTICS COMMUNICATIONS  Volume: 284  Issue: 3  Pages: 715-718  DOI: 10.1016/j.optcom.2010.09.078  Published: FEB 1 2011  

Abstract: Based on the theory of coherence an analytical propagation formula for partially polarized and partially coherent hollow Gaussian Schell-model beams (HGSMBs) passing through a paraxial optical system is derived Furthermore we show that the degree of polarization of source may affect the evolution of HGSMBs and a tunable dark region may exist For two special cases of fully coherent and partially coherent delta(xx)=delta(yy) normalized intensity distributions are independent of the polarization of source (C) 2010 Elsevier B V All rights reserved

Accession Number: WOS:000285678600003

ISSN: 0030-4018

eISSN: 1873-0310

 


 

Record 183 of 209

Title: Image reconstruction by an alternating minimisation

Author(s): Lu, XQ (Lu, Xiaoqiang); Sun, Y (Sun, Yi); Yuan, YA (Yuan, Yuan)

Source: NEUROCOMPUTING  Volume: 74  Issue: 5  Pages: 661-670  DOI: 10.1016/j.neucom.2010.08.003  Published: FEB 2011  

Abstract: This paper focuses on the problem of incomplete data in the applications of the circular cone-beam computed tomography. This problem is frequently encountered in medical imaging sciences and some other industrial imaging systems. For example, it is crucial when the high density region of objects can only be penetrated by X-rays in a limited angular range. As the projection data are only available in an angular range, the above mentioned incomplete data problem can be attributed to the limited angle problem, which is an ill-posed inverse problem. This paper reports a modified total variation minimisation method to reduce the data insufficiency in tomographic imaging. This proposed method is robust and efficient in the task of reconstruction by showing the convergence of the alternating minimisation method. The results demonstrate that this new reconstruction method brings reasonable performance. (C) 2010 Elsevier B.V. All rights reserved.

Accession Number: WOS:000287106100001

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Yuan, Yuan 

GVS-5120-2022 

 

Yuan, Yuan 

ABB-2379-2020 

 

yuan, Yuan 

ISA-0923-2023 

 

 

ISSN: 0925-2312

eISSN: 1872-8286

 


 

Record 184 of 209

Title: Partially polarized wave-breaking-free dissipative soliton with super-broad spectrum in a mode-locked fiber laser

Author(s): Mao, D (Mao, D.); Liu, XM (Liu, X. M.); Wang, LR (Wang, L. R.); Hu, XH (Hu, X. H.); Lu, H (Lu, H.)

Source: LASER PHYSICS LETTERS  Volume: 8  Issue: 2  Pages: 134-138  DOI: 10.1002/lapl.201010105  Published: FEB 2011  

Abstract: We have reported a novel type of partially polarized dissipative soliton in a mode-locked erbium-doped all-fiber laser with strong net normal dispersion. The output pulses exhibit as quasi-trapezoid spectral profiles with 3-dB width as large as 83 nm. The maximum pulse energy and peak power approach 75 nJ and 6 kW at the available pump power of 1 W, respectively. Experimental observations show that the polarization state of the broadband dissipative soliton changes along the cavity position from totally to partially polarized, which is distinct from the typical dissipative soliton that is completely polarized throughout the cavity. It is found that the polarization state of mode-locked dissipative solitons strongly depends on the peak power of pulses, and the partially polarized state results from nonlinear phase shift accumulated in laser cavity.

Accession Number: WOS:000287162300009

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Lu, Hua 

G-3042-2014 

 

Mao, Dong 

G-5113-2014 

 

Wu, Jiale 

JQV-3750-2023 

 

Mao, Dong 

K-6333-2016 

 

 

ISSN: 1612-2011

eISSN: 1612-202X

 


 

Record 185 of 209

Title: Confocal Fabry-Perot interferometer for frequency stabilization of laser

Author(s): Pana, HJ (Pana, H-J); Ruan, P (Ruan, P.); Wang, HW (Wang, H. -W.); Li, F (Li, F.)

Source: LASER PHYSICS  Volume: 21  Issue: 2  Pages: 336-339  DOI: 10.1134/S1054660X11030170  Published: FEB 2011  

Abstract: The frequency shift of laser source of Doppler lidar is required in the range of a few megahertzs. To satisfy this demand, a confocal Fabry-Perot (F-P) interferometer was manufactured as the frequency standard for frequency stabilization. After analyzing and contrasting the center frequency shift of confocal Fabry-Perot interferometers that are made of three different types of material with the change of temperature, the zerodur material was selected to fabricate the interferometer, and the cavity mirrors were optically contacted onto the end of spacer. The confocal Fabry-Perot interferometer was situated within a double-walled chamber, and the change of temperature in the chamber was less than 0.01 K. The experimental results indicate that the free spectral range is 500 MHz, the full-width at half maximum is 3.33 MHz, and the finesse is 150.

Accession Number: WOS:000287525900016

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

wang, hw 

HZH-3227-2023 

 

Wang, Huiwen 

JED-3206-2023 

 

wang, juan 

IUO-6218-2023 

 

 

ISSN: 1054-660X

eISSN: 1555-6611

 


 

Record 186 of 209

Title: Refluxing of fast electrons in solid targets irradiated by intense, picosecond laser pulses

Author(s): Quinn, MN (Quinn, M. N.); Yuan, XH (Yuan, X. H.); Lin, XX (Lin, X. X.); Carroll, DC (Carroll, D. C.); Tresca, O (Tresca, O.); Gray, RJ (Gray, R. J.); Coury, M (Coury, M.); Li, C (Li, C.); Li, YT (Li, Y. T.); Brenner, CM (Brenner, C. M.); Robinson, APL (Robinson, A. P. L.); Neely, D (Neely, D.); Zielbauer, B (Zielbauer, B.); Aurand, B (Aurand, B.); Fils, J (Fils, J.); Kuehl, T (Kuehl, T.); McKenna, P (McKenna, P.)

Source: PLASMA PHYSICS AND CONTROLLED FUSION  Volume: 53  Issue: 2  Article Number: 025007  DOI: 10.1088/0741-3335/53/2/025007  Published: FEB 2011  

Abstract: The propagation of fast electrons produced in the interaction of relativistically intense, picosecond laser pulses with solid targets is experimentally investigated using K-alpha emission as a diagnostic. The role of fast electron refluxing within the target, which occurs when the electrons are reflected by the sheath potentials formed at the front and rear surfaces, is elucidated. The targets consist of a Cu fluorescence layer of fixed thickness at the front surface backed with a propagation layer of CH, the thickness of which is varied to control the number of times the refluxing fast electron population transits the Cu fluorescence layer. Enhancements in the K-alpha yield and source size are measured as the thickness of the CH layer is decreased. Comparison with analytical and numerical modelling confirms that significant refluxing occurs and highlights the importance of considering this phenomenon when deriving information on fast electron transport from laser-solid interaction experiments involving relatively thin targets.

Accession Number: WOS:000286509600019

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

zhang, yan 

JGL-8022-2023 

 

Neely, David 

AAJ-7708-2020 

 

Kühl, Thomas U 

C-2243-2012 

 

McKenna, Paul 

P-5259-2019 

0000-0001-8061-7091 

gray, robert 

HJB-2567-2022 

 

yuan, xiaohui 

O-4622-2015 

 

Brenner, Ceri 

 

0000-0003-0347-4415 

Gray, Ross 

 

0000-0003-0610-9595 

Carroll, David 

 

0000-0002-7894-0882 

 

ISSN: 0741-3335

 


 

Record 187 of 209

Title: Synthesis, Crystal Structure and Optical Properties of Europium Trifluoroacetate Complexes with 1,10-Phenanthroline and 2,2′-Bipyridine

Author(s): She, JB (She Jiangbo); Cui, XX (Cui Xiaoxia); Hou, CQ (Hou Chaoqi); Gao, C (Gao Chao); Wei, W (Wei Wei); Peng, B (Peng Bo)

Source: CHINESE JOURNAL OF CHEMISTRY  Volume: 29  Issue: 2  Pages: 267-272  DOI: 10.1002/cjoc.201190076  Published: FEB 2011  

Abstract: Two europium trifluoroacetate complexes, Eu(CF3COO)(3)center dot phen (1) and Eu(CF3COO)(3)center dot bpy (2) (where phen=1,10-phenanthroline, bpy=2,2'-bipyridine), were synthesized and characterized by elemental analysis, Fourier transform infrared spectroscopy (FT-IR), photoluminescence (PL) spectroscopy and thermogravimetric analysis (TA). Single-crystal X-ray structure has been determined for the complex [Eu-2(CF3COO)(6)center dot(phen)(3)center dot(H2O)(2)]center dot EtOH. The crystal structure of [Eu-2(CF3COO)(6)center dot(phen)(3)center dot(H2O)(2)]center dot EtOH shows that two different coordination styles with europium ions coexist in the same crystal and have entirely different coordination geometries and numbers. This crystal can be considered as an 1 : 1 adduct of [Eu(CF3COO)(3)center dot(Phen)(2)center dot H2O]center dot EtOH (9-coordination part) and Eu(CF3COO)(3)center dot phen center dot H2O (8-coordination part). The excitation spectra of the two complexes demonstrate that the energy collected by "antenna ligands" is transferred to Eu3+ ions efficiently. The room-temperature PL spectra of the complexes are composed of the typical Eu3+ ions red emission, due to transitions between D-5(0) -> F-7(J(J=0 -> 4)). The lifetimes of D-5(0) of Eu3+ in the complexes were examined using time-resolved spectroscopic analysis, and the lifetime values of Eu(CF3COO)(3)center dot phen and Eu(CF3COO)(3)center dot bpy were fitting with bi-exponential (2987 and 353 mu s) and monoexponential (3191 mu s) curves, respectively. In order to elucidate the energy transfer process of the europium complexes, the energy levels of the relevant electronic states had been estimated. The thermal analyses indicate that they are all quite stable to heat.

Accession Number: WOS:000287819700008

ISSN: 1001-604X

 


 

Record 188 of 209

Title: A Sub-pixel Centroid Algorithm for Star Image Based on Gaussian Distribution

Author(s): Sun, J (Sun, Jing); Li, GR (Li, Guangrui); Wen, DS (Wen, Desheng); Xue, B (Xue, Bin); Yang, SD (Yang, Shaodong)

Source: TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES  Volume: 53  Issue: 182  Pages: 307-310  DOI: 10.2322/tjsass.53.307  Published: FEB 2011  

Abstract: A novel centroid algorithm is proposed to acquire better centroid performance in a star image. Since photons incident on pixels of stars present a Gaussian point spread function (PSF), so, the centroid locations on the x and y-axis are calculated using the pixel intensity ratio and expand the Gaussian PSF to polynomials with respect to the centroid location. The angular separation error between star pairs is used to verify the proposed algorithm indirectly. The result clearly shows that the centroid accuracy achieves 1/33 of a pixel and is about two times better than the moment method, indicating the new algorithm is effective.

Accession Number: WOS:000287777700010

ISSN: 0549-3811

 


 

Record 189 of 209

Title: Learning Similarity With Multikernel Method

Author(s): Tang, Y (Tang, Yi); Li, LQ (Li, Luoqing); Li, XL (Li, Xuelong)

Source: IEEE TRANSACTIONS ON SYSTEMS MAN AND CYBERNETICS PART B-CYBERNETICS  Volume: 41  Issue: 1  Pages: 131-138  DOI: 10.1109/TSMCB.2010.2048312  Published: FEB 2011  

Abstract: In the field of machine learning, it is a key issue to learn and represent similarity. This paper focuses on the problem of learning similarity with a multikernel method. Motivated by geometric intuition and computability, similarity between patterns is proposed to be measured by their included angle in a kernel-induced Hilbert space. Having noticed that the cosine of such an included angle can be represented by a normalized kernel, it can be said that the task of learning similarity is equivalent to learning an appropriate normalized kernel. In addition, an error bound is also established for learning similarity with the multikernel method. Based on this bound, a boosting-style algorithm is developed. The preliminary experiments validate the effectiveness of the algorithm for learning similarity.

Accession Number: WOS:000286388300011

PubMed ID: 20519158

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Li, Xuelong 

Z-3785-2019 

 

li, xiang 

GWM-6319-2022 

 

Li, Xuelong 

ABF-3381-2020 

 

Li, Xuelong 

 

0000-0002-0019-4197 

 

ISSN: 1083-4419

eISSN: 1941-0492

 


 

Record 190 of 209

Title: Ghosting phenomena in single photon counting imagers with Vernier anode

Author(s): Yang, H (Yang, Hao); Zhao, BS (Zhao, Baosheng); Yan, QR (Yan, Qiurong); Liu, YA (Liu, Yong'an); Hu, HJ (Hu, Huijun)

Source: REVIEW OF SCIENTIFIC INSTRUMENTS  Volume: 82  Issue: 2  Article Number: 023110  DOI: 10.1063/1.3544018  Published: FEB 2011  

Abstract: We provide the ghosting theory of two-dimensional Vernier anode based imagers. The single photon counting detection system based on Vernier anode is constructed. The ghosting, which occurs during the decoding of two-dimensional Vernier anode, and its possible solutions are described in detail. On the basis of the discussion of the decoding algorithm, the ghosting theoretical model is established. Phase conditions on which imaging ghosting can be avoided and the probability distribution function are proposed; the root causes of ghosting of two-dimensional Vernier anode are also discussed. (C) 2011 American Institute of Physics. [doi:10.1063/1.3544018]

Accession Number: WOS:000287813400010

PubMed ID: 21361576

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

feng, chen 

JLM-8296-2023 

 

zhang, shijie 

HGF-0836-2022 

 

 

ISSN: 0034-6748

eISSN: 1089-7623

 


 

Record 191 of 209

Title: Parallel two-step phase-shifting point-diffraction interferometry for microscopy based on a pair of cube beamsplitters

Author(s): Gao, P (Gao, Peng); Yao, BL (Yao, Baoli); Min, JW (Min, Junwei); Guo, RL (Guo, Rongli); Zheng, JJ (Zheng, Juanjuan); Ye, T (Ye, Tong); Harder, I (Harder, Irina); Nercissian, V (Nercissian, Vanusch); Mantel, K (Mantel, Klaus)

Source: OPTICS EXPRESS  Volume: 19  Issue: 3  Pages: 1930-1935  DOI: 10.1364/OE.19.001930  Published: JAN 31 2011  

Abstract: Parallel two-step phase-shifting point-diffraction interferometry for microscopy based on a pair of cube beamsplitters is proposed. The first 45 degrees-tilted cube beamsplitter splits object wave into two parallel copies: one copy is filtered by a pinhole in its Fourier plane to behave as reference wave, while the other one remains unchanged as object wave. The second cube beamsplitter combines the object and reference waves, and then split them together into two beams. Along with the two beams, two parallel phase-shifting interferograms are obtained in aid of polarization elements. Based on the proposed configuration, slightly-off-axis interferometry for microscopy is performed, which suppresses dc term by subtracting the two phase-shifting holograms from each other. The setup is highly stable due to its common-path configuration, and has been demonstrated to be suitable for measuring moving objects or dynamic processes. (C) 2011 Optical Society of America

Accession Number: WOS:000286807100028

PubMed ID: 21369008

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Yao, Baoli 

AAB-4606-2021 

 

Ye, Tong 

A-8251-2010 

0000-0003-1017-6969 

Ye, Tong 

ABG-8560-2021 

0000-0003-1017-6969 

min, junwei 

HDO-7763-2022 

0000-0001-7931-9361 

 

ISSN: 1094-4087

 


 

Record 192 of 209

Title: Shifting the spherical focus of a 4Pi focusing system

Author(s): Yan, SH (Yan, Shaohui); Yao, BL (Yao, Baoli); Rupp, R (Rupp, Romano)

Source: OPTICS EXPRESS  Volume: 19  Issue: 2  Pages: 673-678  DOI: 10.1364/OE.19.000673  Published: JAN 17 2011  

Abstract: In a 4Pi focusing system radially polarized laser beams can be focused to a spherical focal spot. For many applications, e. g., for moving trapped particles or for scanning a specimen, one would like to change the position of focal spot along the optical axis without moving lenses or laser beams. We demonstrate how this can be achieved by modulating the phase of the input field at the pupil plane of the lens. The required phase modulation function is determined by spherical wave expansion of the plane wave factors in the Richards-Wolf integral. (C)2011 Optical Society of America

Accession Number: WOS:000286314600027

PubMed ID: 21263606

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Yao, Baoli 

AAB-4606-2021 

 

 

ISSN: 1094-4087

 


 

Record 193 of 209

Title: Enhanced Efficiency of Multiple Four-Wave Mixing Induced by Modulation Instability in Low-Birefringence Fibers

Author(s): Liu, XM (Liu, X. M.)

Source: JOURNAL OF LIGHTWAVE TECHNOLOGY  Volume: 29  Issue: 2  Pages: 179-185  DOI: 10.1109/JLT.2010.2097241  Published: JAN 15 2011  

Abstract: Modulation instability (MI) induced by two strong beams and a weak beam via cross phase modulation is investigated. Multiple four-wave-mixing (FWM) processes associated with the MI in low-birefringence fibers are studied both theoretically and experimentally. The coupled-mode equations describing the MI-induced FWM nonlinear interactions between pump waves and sideband waves are derived. Theoretical and experimental results show that, on the assistance of MI, new optical frequencies can be generated quite efficiently from multiple FWM processes. More than eleven sidebands are experimentally achieved by the MI-driven multiple FWM processes. The transfer of energy from pumps to sidebands can be dramatically enhanced by the MI-induced parametric process. The experimental observations by using a piece of highly nonlinear dispersion-flattened photonic-crystal fiber confirm our theoretical predictions.

Accession Number: WOS:000286110600002

ISSN: 0733-8724

 


 

Record 194 of 209

Title: Morphology of NaNdF<sub>4</sub> nanocrystals from Nd(C<sub>3</sub>H<sub>7</sub>COO)<sub>3</sub>•Phen and Nd(NO<sub>3</sub>)<sub>3</sub>•Phen (Phen, 1,10-phenanthroline) as neodymium precursors

Author(s): Cui, K (Cui Kai); Gao, C (Gao Chao); Cui, XX (Cui Xiaoxia); She, JB (She Jiangbo); Peng, B (Peng Bo); Wei, W (Wei Wei)

Source: JOURNAL OF RARE EARTHS  Volume: 29  Issue: 1  Pages: 20-23  DOI: 10.1016/S1002-0721(10)60399-7  Published: JAN 2011  

Abstract: A series of NaNdF4 nanocrystals was synthesized via a facile hydrothermal route with Nd(C3H7COO)(3)center dot Phen and Nd(NO3)(3)center dot Phen (Phen, 1,10-phenanthroline) as the Nd precursors. Distinct effect of the neutral donor ligand (Phen) on the morphology of NaNdF4 nanocrystals was demonstrated. When Nd(C3H7COO)(3)center dot Phen was chosen and the hydrothermal reaction temperature was controlled at 220 degrees C, the NaNdF4 nanocrystals with uniform short nanorod shape were obtained. The sizes of the as-prepared nanorods could be tuned by changing the hydrothermal temperatures. This method provided a useful way for the preparation of sodium rare-earth fluoride nanocrystals with controlled shapes and sizes.

Accession Number: WOS:000287021900004

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Peng, Bo 

JMQ-8671-2023 

0000-0002-7626-8455 

Cui, Kai 

H-4344-2011 

 

Peng, Bo 

AAV-8243-2021 

 

 

ISSN: 1002-0721

 


 

Record 195 of 209

Title: Multi-Sensor Centralized Fusion without Measurement Noise Covariance by Variational Bayesian Approximation

Author(s): Gao, XB (Gao, Xinbo); Chen, JG (Chen, Jinguang); Tao, DC (Tao, Dacheng); Li, XL (Li, Xuelong)

Source: IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS  Volume: 47  Issue: 1  Pages: 718-727  DOI: 10.1109/TAES.2011.5705702  Published: JAN 2011  

Abstract: The work presented here solves the multi-sensor centralized fusion problem in the linear Gaussian model without the measurement noise variance. We generalize the variational Bayesian approximation based adaptive Kalman filter (VB_AKF) from the single sensor filtering to a multi-sensor fusion system, and propose two new centralized fusion algorithms, i.e., VB_AKF-based augmented centralized fusion algorithm and VB_AKF-based sequential centralized fusion algorithm, to deal with the case that the measurement noise variance is unknown. The simulation results show the effectiveness of the proposed algorithms.

Accession Number: WOS:000286931800048

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Li, Xuelong 

Z-3785-2019 

 

Tao, Dacheng 

A-5449-2012 

0000-0001-7225-5449 

li, xiang 

GWM-6319-2022 

 

Li, Xuelong 

ABF-3381-2020 

 

Li, Xuelong 

 

0000-0002-0019-4197 

 

ISSN: 0018-9251

eISSN: 1557-9603

 


 

Record 196 of 209

Title: Non-goal scene analysis for soccer video

Author(s): Gao, XB (Gao, Xinbo); Niu, ZX (Niu, Zhenxing); Tao, DC (Tao, Dacheng); Li, XL (Li, Xuelong)

Source: NEUROCOMPUTING  Volume: 74  Issue: 4  Pages: 540-548  DOI: 10.1016/j.neucom.2010.09.013  Published: JAN 2011  

Abstract: The broadcast soccer video is usually recorded by one main camera, which is constantly gazing somewhere of playfield where a highlight event is happening. So the camera parameters and their variety have close relationship with semantic information of soccer video, and much interest has been caught in camera calibration for soccer video. The previous calibration methods either deal with goal scene, or have strict calibration conditions and high complexity. So, it does not properly handle the non-goal scene such as midfield or center-forward scene. In this paper, based on a new soccer field model, a field symbol extraction algorithm is proposed to extract the calibration information. Then a two-stage calibration approach is developed which can calibrate camera not only for goal scene but also for non-goal scene. The preliminary experimental results demonstrate its robustness and accuracy. (c) 2010 Elsevier B.V. All rights reserved.

Accession Number: WOS:000286697800005

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Li, Xuelong 

ABF-3381-2020 

 

Li, Xuelong 

Z-3785-2019 

 

li, xiang 

GWM-6319-2022 

 

Tao, Dacheng 

A-5449-2012 

0000-0001-7225-5449 

Li, Xuelong 

 

0000-0002-0019-4197 

 

ISSN: 0925-2312

eISSN: 1872-8286

 


 

Record 197 of 209

Title: Polarization detection with polarization interference imaging spectrometer

Author(s): Jian, XH (Jian, Xiaohua); Zhang, CM (Zhang, Chunmin); Zhao, BC (Zhao, Baochang)

Source: OPTIK  Volume: 122  Issue: 8  Pages: 677-680  DOI: 10.1016/j.ijleo.2010.05.004  Published: 2011  

Abstract: A new method of measuring the intensity and state of polarization of optical radiation by means of the high resolution polarization interference imaging spectrometer (PIIS) is introduced and theoretically investigated in this paper. The error accuracy analysis is proposed, and it is proved that the system is very stable and precise in theory. In this new way, the polarized characteristics of light could be taken good use to analyze and distinguish objects in passive remote sensing with the PI IS, which means that the polarization interference imaging spectrometer now can be used not only as cameras and interferometers but also as polaristrobometers. (C) 2010 Published by Elsevier GmbH.

Accession Number: WOS:000289541000005

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

zhang, chunmei 

IUQ-7038-2023 

 

Zhang, Chun 

GRE-8915-2022 

 

 

ISSN: 0030-4026

 


 

Record 198 of 209

Title: Measuring the Topological Charge of Integer and Fraction Vortices Using Multipoint Plates

Author(s): Li, YY (Li, Yang-yue); Liu, H (Liu, Hui); Chen, ZY (Chen, Zi-yang); Pu, JX (Pu, Ji-xiong); Yao, BL (Yao, Bao-li)

Source: OPTICAL REVIEW  Volume: 18  Issue: 1  Pages: 7-12  DOI: 10.1007/s10043-011-0033-z  Published: JAN 2011  

Abstract: The topological charge of integral vortex beams with a single circle of multipoints has previously been measured. In this work, we theoretically and experimental study the diffraction patterns of vortex beams of integral and fractional topological charges using a single circle and two circles of multipoint plates. It is found that the diffraction patterns are dependent not only on the multipoint plates, but also on the topological charge of the vortex beams. On the basis of this property, we can measure the topological charges of integral and fractional vortex beams. (C) 2011 The Japan Society of Applied Physics

Accession Number: WOS:000287248800002

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Chen, Ziyang 

G-6574-2012 

0000-0002-2467-8372 

Pu, Jixiong 

C-1080-2011 

 

Yao, Baoli 

AAB-4606-2021 

 

 

ISSN: 1340-6000

eISSN: 1349-9432

 


 

Record 199 of 209

Title: A TECHNOLOGY TO GENERATE ARBITRARY ELECTRICAL WAVEFORM FOR SHAPING HIGH POWER LASER

Author(s): Liu, H (Liu, H.); Liu, BY (Liu, B. -Y.); Bai, YL (Bai, Y. -L.); Gou, YS (Gou, Y. -S.); Zheng, JK (Zheng, J. -K.)

Source: JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS  Volume: 25  Issue: 4  Pages: 495-506  DOI: 10.1163/156939311794500287  Published: 2011  

Abstract: In order to improve the output power of laser pulse in the inertia confinement fusion experiment, an arbitrary waveform generator is fabricated to shape the laser pulse. The arbitrary waveform generator is based on the micro-strip line transmission delay technology and GaAs Field Effect Transistor set which has a good ability of generating voltage-controlled current. To satisfy high amplitude requirement on electrical pulse for optical waveguide modulator, an ultra-broad bandwidth voltage tunable amplifier is applied to the output signals, and the pulse amplitude is adjustable. The designed generator generates a pulse waveform with amplitude between 0 and 5 V, duration less than 10 ns, 330 ps time-domain adjustment and a square pulse with rising edge 471 ps, falling edge 428 ps. The experiment results show the shaped laser pulse is obtained based on the shaping electrical pulse.

Accession Number: WOS:000287974700004

ISSN: 0920-5071

 


 

Record 200 of 209

Title: Over 300 nm tunable broadband one-crystal noncollinear optical parametric amplification

Author(s): Long, HB (Long, H. B.); Li, XF (Li, X. F.); Liu, HJ (Liu, H. J.)

Source: LASER PHYSICS  Volume: 21  Issue: 1  Pages: 86-89  DOI: 10.1134/S1054660X11010130  Published: JAN 2011  

Abstract: An over 300 nm tunable broadband noncollinear optical parametric amplification in visible scale as well as the generation of blue pump pulses in one BBO crystal are demonstrated. Micro-joule energies are achieved in the signal branch, and the signal central wavelength can be tuned from 475 to 800 nm. The near-transform-limited sub-50 fs pulse duration is attainable over the whole tuning range after compression by a pair of prisms.

Accession Number: WOS:000287457000013

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Liu, Hongjun 

D-2541-2016 

 

 

ISSN: 1054-660X

eISSN: 1555-6611

 


 

Record 201 of 209

Title: Analytical vectorial structure of non-paraxial four-petal Gaussian beams in the far field

Author(s): Long, XW (Long, Xuewen); Lu, KQ (Lu, Keqing); Zhang, YH (Zhang, Yuhong); Guo, JB (Guo, Jianbang); Li, KH (Li, Kehao)

Source: OPTIK  Volume: 122  Issue: 16  Pages: 1448-1452  DOI: 10.1016/j.ijleo.2010.09.028  Published: 2011  

Abstract: The analytical vectorial structure of non-paraxial four-petal Gaussian beams (FPGBs) in the far field has been studied based on vector angular spectrum method and stationary phase method. In terms of analytical electromagnetic representations of the TE and TM terms, the energy flux distributions of the TE term, the TM term, and the whole beam are derived in the far field, respectively. According to our investigation, the FPGBs can evolve into a number of small petals in the far field. The number of the petals is determined by the order of input beam. The physical pictures of the FPGBs are well illustrated from the vectorial structure, which is beneficial to strengthen the understanding of vectorial properties of the FPGBs. (C) 2010 Elsevier GmbH. All rights reserved.

Accession Number: WOS:000294150200011

ISSN: 0030-4026

eISSN: 1618-1336

 


 

Record 202 of 209

Title: TUNABLE AND ROBUST REFLECTION-FREE WAVEGUIDES BASED ON A GYROMAGNETIC PHOTONIC CRYSTAL

Author(s): Lu, H (Lu, H.); Liu, XM (Liu, X. M.); Zhou, R (Zhou, R.); Mao, D (Mao, D.); Gong, Y (Gong, Y.)

Source: JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS  Volume: 25  Issue: 11-12  Pages: 1752-1761  DOI: 10.1163/156939311797164882  Published: 2011  

Abstract: We propose and numerically investigate a kind of tunable and robust reflection-free waveguides based on a gyromagnetic photonic crystal (PC). The time reversal symmetry breaking of the gyromagnetic PC under out-of-plane dc magnetic fields gives rise to one-way edge modes in both the second and third band gaps. It is found that the propagating properties of one-way modes in the waveguides can be easily controlled by adjusting the directions of external magnetic fields. Moreover, the one-way modes are robust against the disorder in the waveguides.

Accession Number: WOS:000294975100026

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Wu, Jiale 

JQV-3750-2023 

 

Lu, Hua 

G-3042-2014 

 

Mao, Dong 

G-5113-2014 

 

Gong, Yongkang 

F-1335-2017 

0000-0002-2830-4423 

 

ISSN: 0920-5071

eISSN: 1569-3937

 


 

Record 203 of 209

Title: High energy and high efficiency 3.4 μm extracavity KTA optical parametric oscillator

Author(s): Sun, QB (Sun, Q. B.); Liu, HJ (Liu, H. J.); Huang, N (Huang, N.); Ruan, C (Ruan, C.); Zhu, SL (Zhu, S. L.); Zhao, W (Zhao, W.)

Source: LASER PHYSICS LETTERS  Volume: 8  Issue: 1  Pages: 16-20  DOI: 10.1002/lapl.201010083  Published: JAN 2011  

Abstract: A high energy and high efficiency extracavity KTiOAsO4 (KTA) optical parametric oscillator (OPO) with excellent stability and beam quality, which is pumped by a Q-switched single-longitudinal-mode Nd:YAG laser, has been demonstrated based on a type II non-critical phase matching (NCPM) KTA crystal. The maximum pulse energy of 10 mJ at 3.467 mu m is obtained with the repetition rate of 10 Hz and pulse width of 2 ns, corresponding to an optical-optical conversion efficiency of 14% from 1.064 mu m to 3.467 mu m. After one hour of investigation, the OPO output stability better than 4.5% rms has been obtained.
[GRAPHICS]
The output stability of 3.467 mu m (C) 2011 by Astro Ltd. Published exclusively by WILEY-VCH Verlag GmbH & Co. KGaA

Accession Number: WOS:000286439700003

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Liu, Hongjun 

D-2541-2016 

 

 

ISSN: 1612-2011

eISSN: 1612-202X

 


 

Record 204 of 209

Title: An adaptive VQ method used on interferential multi-spectral image lossless compression

Author(s): Wen, J (Wen, Jia); Ma, CW (Ma, Caiwen); Shui, PL (Shui, Penglang)

Source: OPTICS COMMUNICATIONS  Volume: 284  Issue: 1  Pages: 64-73  DOI: 10.1016/j.optcom.2010.08.030  Published: JAN 1 2011  

Abstract: In this paper, a high efficient adaptive LBG VQ (vector quantization) method is proposed, which is an improved version of the expansion LBG VQ method [1] (proposed in 2009)and exploits the shortest distance from a point to line segment. Moreover, the proposed method is used on the lossless compression of LASIS (Large Aperture Static Imaging Spectrometer) interferential multi-spectral images. Compared with the expansion LBG VQ method proposed in 2009. the experimental results showed that the adaptive LBG VQ method improved the compression performance obviously. And the experiment also showed that when using these LBG VQ methods above without Dual-Direction Prediction [2], the entropy generated by expansion LBG VQ method [1] sometimes will be larger than that generated by traditional LBG VQ method [3], and when using these LBG VQ methods above after Dual-Direction Prediction [2], CR (compression ratio) generated by expansion LBG VQ method [1] sometimes will be less than that generated by traditional LBG VQ method [3], while the entropy generated by the method proposed in this paper will be much less than that generated by either traditional LBG VQ method [3] or the expansion LBG VQ method [1] and CR generated by the method proposed in this paper will be much larger than that generated by either traditional LBG VQ method [3] or the expansion LBG VQ method [1]. (C) 2010 Elsevier B.V. All rights reserved.

Accession Number: WOS:000285893200011

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Shui, Peng-Lang 

 

0000-0002-5921-5255 

 

ISSN: 0030-4018

eISSN: 1873-0310

 


 

Record 205 of 209

Title: Polymer-metal complex as gel electrolyte for quasi-solid-state dye-sensitized solar cells

Author(s): Xiang, WC (Xiang, Wanchun); Fang, YY (Fang, Yanyan); Lin, YA (Lin, Yuan); Fang, SB (Fang, Shibi)

Source: ELECTROCHIMICA ACTA  Volume: 56  Issue: 3  Pages: 1605-1610  DOI: 10.1016/j.electacta.2010.10.061  Published: JAN 1 2011  

Abstract: A kind of polymer-metal complex gel electrolyte is successfully prepared and is used in dye-sensitized solar cells. Raman and X-ray photoelectron spectroscopy confirm the structure of this complex and is found that the metal ion reacts with nitrogen in the polymer. This novel electrolyte shows apparent diffusion coefficient of iodide of 8.37 x 10(-7) cm(2) s(-1) and the energy conversion efficiency of 6.10% when the amount of Znl(2) is 0.04 M. By studying the dissociation active energy of the inorganic salt in electrolytes, we find that the metal salts can dissociate more easily after reacting with polymer and as a result can provide extra free iodide ion. The cell maintains ca. 93% of its initial efficiency after 20 d without further sealing, which shows good long-time stability. Crown Copyright (C) 2010 Published by Elsevier Ltd. All rights reserved.

Accession Number: WOS:000289225400083

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

lin, yuan 

G-9390-2013 

0000-0003-3410-3588 

 

ISSN: 0013-4686

eISSN: 1873-3859

 


 

Record 206 of 209

Title: Microplasma Technology and Its Applications in Analytical Chemistry

Author(s): Yuan, X (Yuan, Xin); Tang, J (Tang, Jie); Duan, YX (Duan, Yixiang)

Source: APPLIED SPECTROSCOPY REVIEWS  Volume: 46  Issue: 7  Pages: 581-605  DOI: 10.1080/05704928.2011.604814  Published: 2011  

Abstract: This review article describes some existing microplasma sources and their applications in analytical chemistry. These microplasmas mainly include direct current glow discharge (DC), microhollow-cathode discharge (MHCD) or microstructure electrode (MSE), dielectric barrier discharge (DBD), capacitively coupled microplasmas (CC mu Ps), miniature inductively coupled plasmas (mICPs), and microwave-induced plasmas (MIPs). The historical development and recent advances in these microplasma techniques are presented. Fundamental properties of the microplasmas, the unique features of the reduced size and volume, as well as the advantageous device structures for chemical analysis are discussed in detail, with the emphasis toward detection of gaseous samples. The analytical figures of merit obtained using these microplasmas as molecular/elemental-selective detectors for emission spectrometry and as ionization sources for mass spectrometry are also given in this review article.

Accession Number: WOS:000295401600004

ISSN: 0570-4928

eISSN: 1520-569X

 


 

Record 207 of 209

Title: Preparation and properties of novel GeS<sub>2</sub>-Ga(In)<sub>2</sub>S<sub>3</sub>-CuI chalcohalide glasses

Author(s): Zheng, X (Zheng, X.); Chen, F (Chen, F.); Tao, H (Tao, H.); Guo, H (Guo, H.); Lin, C (Lin, C.); Gu, S (Gu, S.); Zhao, X (Zhao, X.)

Source: JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS  Volume: 13  Issue: 1-2  Pages: 24-31  Published: JAN 2011  

Abstract: Novel GeS2-Ga(In)(2)S-3-CuI chalcohalide glasses were prepared successfully. These glasses have relatively high glass transition temperatures up to 452 degrees C but narrow glass-forming region, and a wide range of transmission approximately from 0.50 to 12.5 mu m. The structural evolvement of the glasses was studied by Raman spectroscopy. Finally, third-order optical nonlinearities were investigated utilizing Z-scan technique at the wavelength of 800nm. Both nonlinear refractive index n(2) and nonlinear absorption coefficient beta show an increasing tendency with increasing CuI content or substituting In for Ga, and structural dependency of n(2) has also been discussed. A minimum figure of merit FOM = 2.237 was obtained.

Accession Number: WOS:000288624300004

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Tao, Haizheng 

C-9243-2014 

0000-0002-5013-837X 

Chen, Fen 

ABG-7013-2021 

 

Zhao, Xiujian 

E-1499-2011 

 

Lin, Changgui 

B-8915-2009 

0000-0002-0574-6296 

 

ISSN: 1454-4164

 


 

Record 208 of 209

Title: General Expression of Optic Path Difference of Reflecting Rotating Fourier Transform Spectrometer

Author(s): Zhou, JS (Zhou Jin-song); Xiangli, B (Xiangli Bin); Wei, RY (Wei Ru-yi); Jing, JJ (Jing Juan-juan)

Source: SPECTROSCOPY AND SPECTRAL ANALYSIS  Volume: 31  Issue: 1  Pages: 263-266  DOI: 10.3964/j.issn.1000-0593(2011)01-0263-04  Published: JAN 2011  

Abstract: The principle of reflecting rotating Fourier transform spectrometer was introduced in the present paper. Based on the Malus law and reflecting characteristic of cube corner, the optic path difference of reflecting rotating Fourier transform spectrometer was analyzed and calculated by choosing the center of rotating mirror as a reference point of the aplanatic surface of incidence beam and return beam. General expression of optic path difference at any time and maximal optic path difference of reflecting rotating Fourier transform spectrometer was presented. The factors that influence the maximal optic path difference and the period of optic path difference were analyzed. The results provide a theoretical guidance for design and manufacture of reflecting rotating Fourier transform spectrometer.

Accession Number: WOS:000286290900060

PubMed ID: 21428102

ISSN: 1000-0593

 


 

Record 209 of 209

Title: Binding sites and forces of anti-collagen I antibody on collagen fiber observed using atomic force microscopy

Author(s): Zhu, J (Zhu, Jie); Guo, LH (Guo, Lianhong); Sabharwal, T (Sabharwal, Tanya); Kalyanasundaram, A (Kalyanasundaram, Aruna); Ouyang, WQ (Ouyang, Wuqing); Zhang, WK (Zhang, Wenke); Yao, BL (Yao, Baoli); Orgel, JP (Orgel, Joseph Pro.)

Source: CARDIOLOGY  Volume: 120  Pages: 44-45  Supplement: 1  Published: 2011  

Accession Number: WOS:000298305100083

Author Identifiers:

Author

Web of Science ResearcherID

ORCID Number

Yao, Baoli 

AAB-4606-2021 

 

zhou, chuyue 

JOJ-9001-2023 

 

WANG, HUI 

JFA-9683-2023 

 

Orgel, Joseph 

 

0000-0002-1050-9391 

 

ISSN: 0008-6312