Prof. Wei Zhao Profile

Prof. Wei Zhao

Professor at XIOPM CAS

SPIE Involvement:

Author

Publications (54)

Proceedings Article | 4 April 2023 Paper

Photoelectric characteristics of different micro structures of black silicon etched by femtosecond laser

Xiaomo Zhang, Xiangping Zhu, Yang Liu, Wei Zhao, Chuan Jin, Pu Zhang

Proceedings Volume 12617, 126170S (2023) https://doi.org/10.1117/12.2663330

KEYWORDS: Silicon, Semiconductor lasers, Absorption, Etching, Femtosecond phenomena, Optoelectronic devices, Annealing, Photodetectors, Aluminum, Sensors

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Black silicon, which is characterized as numerous nanospikes induced on bulk silicon, has recently attracted great attention due to its fascinating photoelectric property. Compared with the traditional silicon-based photoelectric sensor, photoelectric sensors based on the black silicon doped with supersaturated chalcogens have shown both excellent photoelectric corresponding efficiency in the visible range and considerable optical absorption efficiency in the near infrared band due to the impurity energy-level introduced by the chalcogens element supersaturated doping. Nonetheless, the differences of surface morphology greatly affect the photoelectric efficiency of black silicon photoelectric sensors, which is quite difficult to control in practice. As one of the mainstream methods in black silicon fabrication, femtosecond laser etching exhibits the ability in manipulate different dimensionality and configurations and provide a clear and flexible research platform. Black silicon can be etched on traditional silicon-based photoelectric sensor with different size of surface morphology according to the size of surface thickness. In this work, by varying the etching energy density of the femtosecond laser, three kinds of black silicon samples with different surface morphology were obtained. At the same time, the surface morphology, size, visible-infrared absorptivity and photoelectric conversion efficiency of black silicon were characterized by scanning electron microscope, spectrophotometer and confocal Raman spectroscopy, etc. We got three sample characterization data, the minimum morphology depth of black silicon can be controlled at 2μm, the maximum visible light absorption efficiency can reach 90%, and the near-infrared absorption efficiency can reach 60% before annealing. Naturally, the photoelectric conversion efficiency has been proven to be significantly improved. Based on the observation of experimental results, it is an important step to understand the photoelectric characteristic of black silicon with different morphologies, which is the application of black silicon in different fields.

Proceedings Article | 24 November 2021 Paper

Standoff detection of explosive materials using time-gated UV-Raman spectroscopy

Bo Wang, Pu Zhang, Shuyao Zhang, Xiangping Zhu, Wei Zhao

Proceedings Volume 12064, 120640Q (2021) https://doi.org/10.1117/12.2606981

KEYWORDS: Raman spectroscopy, Potassium, Standoff detection, Explosives, Explosives detection, Spectroscopy, Raman scattering, Light scattering, Laser energy

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Proceedings Article | 9 October 2021 Poster + Paper

DNN-assisted activity classification using fiber interferometer sensor

Guohao Zhu, Wei Xu, Cheung Chuen Yu, Wenye Sun, Bo Dong, Changyuan Yu, Wei Zhao, Yishan Wang

Proceedings Volume 11894, 118941F (2021) https://doi.org/10.1117/12.2601294

KEYWORDS: Fiber optics sensors, Neural networks, Sensors, Interferometers, Evolutionary algorithms, Vital signs, Performance modeling, Mach-Zehnder interferometers, Interference (communication), Fiber optics

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Proceedings Article | 9 October 2021 Poster + Paper

SAHS detection using contact-free MZI-BCG sensor

Xinning Jiang, Wei Xu, Cheung Chuen Yu, Wenye Sun, Bo Dong, Changyuan Yu, Wei Zhao, Yishan Wang

Proceedings Volume 11894, 118941G (2021) https://doi.org/10.1117/12.2601391

KEYWORDS: Signal detection, Sensors, Heart, Signal processing, Optical fibers, Mach-Zehnder interferometers, Interferometers, Electronics engineering, Vital signs, Sun

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Proceedings Article | 10 October 2020 Presentation + Paper

Highly sensitive smart cushion embedded with SMS structure for contactless vital signs and activity monitoring

Shuying Han, Wei Xu, Shanhong You, Bo Dong, Changyuan Yu, Wei Zhao, Yishan Wang

Proceedings Volume 11547, 1154707 (2020) https://doi.org/10.1117/12.2573877

KEYWORDS: Vital signs, Structured optical fibers, Single mode fibers, Signal processing, Sensors, Fiber optics sensors

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SPIE Journal Paper | 21 February 2020

Phase-locked two-color visible frequency comb system based on 1.5-μm all-polarization-maintaining fiber laser

Yajun Cai, Ran Pan, Xiaohong Hu, Ye Feng, Wei Zhang, Wei Zhao, Yishan Wang

OE, Vol. 59, Issue 02, 026107, (February 2020) https://doi.org/10.1117/12.10.1117/1.OE.59.2.026107

KEYWORDS: Visible radiation, Crystals, Optical amplifiers, Frequency combs, Fiber lasers, Oscillators, Fiber amplifiers, Mode locking, Optical engineering, Laser development

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Proceedings Article | 31 January 2020 Paper

Propagation properties of standard and elegant Herimite-Gaussian beams in oceanic turbulence

Hao Wang, Fu-Zeng Kang, Wei Zhao, Yi-Chao Li

Proceedings Volume 11427, 114273R (2020) https://doi.org/10.1117/12.2553066

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Proceedings Article | 20 December 2019 Paper

Single photon counting 3D imaging implemented under signal-to-noise ratio less than one

Yan Kang, Tongyi Zhang, Lifei Li, Biao Wang, Wei Zhao

Proceedings Volume 11209, 112094Z (2019) https://doi.org/10.1117/12.2549971

KEYWORDS: Signal to noise ratio, Photon counting, Imaging systems, Single photon, LIDAR

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Proceedings Article | 10 May 2019 Paper

Influence of electro-optical crystal flatness on indirect modulation signal for underwater blue-green laser communication

Biao Han, Wei Wang, Yunqiang Zheng, Kui Shi, Jiacheng Meng, Yulong Su, Tao Wang, Yi Han, Xiaoping Xie, Wei Zhao

Proceedings Volume 11068, 1106823 (2019) https://doi.org/10.1117/12.2524680

KEYWORDS: Crystals, Modulation, Monte Carlo methods, Laser crystals, Modulators, Laser communications, Electro optics, Signal attenuation, Ocean optics, Refractive index

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SPIE Journal Paper | 22 April 2019

Compact, robust, and repetition-rate-locked all-polarization-maintaining femtosecond fiber laser system

Yajun Cai, Ran Pan, Tong Zhang, Yuanshan Liu, Hushan Wang, Wei Zhang, Yishan Wang, Wei Zhao, Ye Feng, Xiaohong Hu

OE, Vol. 58, Issue 04, 046108, (April 2019) https://doi.org/10.1117/12.10.1117/1.OE.58.4.046108

KEYWORDS: Laser systems engineering, Fiber lasers, Femtosecond fiber lasers, Mode locking, Oscillators, Femtosecond phenomena, Field programmable gate arrays, Laser resonators, Ferroelectric materials, Linear filtering

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SPIE Journal Paper | 13 March 2018

High pumping-power fiber combiner for double-cladding fiber lasers and amplifiers

Jinkun Zheng, Wei Zhao, Baoyin Zhao, Zhe Li, Chang Chang, Gang Li, Qi Gao, Pei Ju, Wei Gao, Shengfei She, Peng Wu, Chaoqi Hou, Weinan Li

OE, Vol. 57, Issue 03, 036105, (March 2018) https://doi.org/10.1117/12.10.1117/1.OE.57.3.036105

KEYWORDS: Fiber amplifiers, Fiber lasers, Optical amplifiers, Lithium, High power fiber amplifiers, Manufacturing, Cladding, Optical pumping, Optics manufacturing, Continuous wave operation

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SPIE Journal Paper | 23 December 2017

Entangled-photons compressive ghost imaging based on spatial correlation of sensing matrix

Dawei Liu, Lifei Li, Yixing Geng, Yan Kang, Tongyi Zhang, Wei Zhao, Weibin Dong, Kunlin Shi

OE, Vol. 56, Issue 12, 123108, (December 2017) https://doi.org/10.1117/12.10.1117/1.OE.56.12.123108

KEYWORDS: Photons, Digital micromirror devices, Image quality, Quantum efficiency, Quantum information, Imaging systems, Sensors, Image processing, Lithium, Compressed sensing

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SPIE Journal Paper | 5 October 2017

High-energy femtosecond fiber laser system and pulse selection based on high-repetition rate KTiOPO4 Pockels cell

Feng Li, Zhi Yang, Zhiguo Lv, Yang Yang, Wenqi Zhu, Baoning Jiang, Qianglong Li, Xiaojun Yang, Yishan Wang, Wei Zhao

OE, Vol. 56, Issue 10, 106101, (October 2017) https://doi.org/10.1117/12.10.1117/1.OE.56.10.106101

KEYWORDS: Laser systems engineering, Pulsed laser operation, Ferroelectric materials, Femtosecond fiber lasers, Beam splitters, Fiber lasers, Fiber amplifiers, Femtosecond phenomena, Crystals, Parallel processing

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Proceedings Article | 21 August 2013 Paper

Experimental research of optical preamplifier receiver for RZ-DPSK based on delay interferometer

Ke-wei Zhang, Wei Wang, Wei Zhao, Xiao-ping Xie, Feng-chen Qian

Proceedings Volume 8906, 89060Q (2013) https://doi.org/10.1117/12.2032798

KEYWORDS: Receivers, Interferometers, Transient nonlinear optics, Telecommunications, Modulation, Modulators, Optical communications, Phase shift keying, Photodetectors, Environmental sensing

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Proceedings Article | 21 August 2013 Paper

The influence of atmospheric turbulence on IM/DD space optical communication system

Anhai Wei, Biao Han, Wei Zhao, Xiaoping Xie, Hui Hu, Yulong Su, Kewei Zhang

Proceedings Volume 8906, 890610 (2013) https://doi.org/10.1117/12.2033028

KEYWORDS: Turbulence, Signal to noise ratio, Telecommunications, Atmospheric turbulence, Optical communications, Gaussian beams, Atmospheric propagation, Atmospheric modeling, Scintillation, Modulation

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Proceedings Article | 16 May 2013 Paper

Pulse contrast measurement of femtosecond lasers using chalcohalide glass

Dengke Wu, Junfang He, Haitao Guo, Changjun Zhu, Yishan Wang, Wei Zhao

Proceedings Volume 8796, 87962F (2013) https://doi.org/10.1117/12.2011984

KEYWORDS: Glasses, Femtosecond phenomena, Transient nonlinear optics, Pulsed laser operation, Near field optics, Fabry–Perot interferometers, Signal detection, Visible radiation, Optical correlators, Near infrared

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SPIE Journal Paper | 22 February 2012

Generation of broadband cascaded four-wave mixing products in silicon-on-insulator waveguide

Jin Wen, Hongjun Liu, Nan Huang, Qibing Sun, Wei Zhao

OE, Vol. 51, Issue 02, 024601, (February 2012) https://doi.org/10.1117/12.10.1117/1.OE.51.2.024601

KEYWORDS: Waveguides, Dispersion, Silicon, Picosecond phenomena, Four wave mixing, Photons, Optical fibers, Cladding, Nonlinear optics, Optical engineering

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Proceedings Article | 25 January 2012 Paper

Impact of phase noise on coherent BPSK homodyne systems in long-haul optical fiber communications

Gang Yu, Xiaoping Xie, Wei Zhao, Wei Wang, Shuangyi Yan

Proceedings Volume 8331, 83310R (2012) https://doi.org/10.1117/12.915964

KEYWORDS: Optical amplifiers, Receivers, Amplifiers, Homodyne detection, Fiber optic communications, Nonlinear optics, Telecommunications, Fiber amplifiers, Interference (communication), Complex systems

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SPIE Journal Paper | 1 October 2011

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

Huixing Zhang, Wei Zhao

OE, Vol. 50, Issue 10, 105008, (October 2011) https://doi.org/10.1117/12.10.1117/1.3640828

KEYWORDS: Clocks, Finite impulse response filters, Optical filters, Electronic filtering, Eye, Digital signal processing, Data acquisition, Filtering (signal processing), Optical engineering, Optimal filtering

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Proceedings Article | 17 November 2010 Paper

Narrow linewidth and widely tunable operation of Tm-doped fiber laser with volume Bragg gratings

DeYuan Shen, Yishan Wang, Wei Zhao, Jingyu Long, Cheng Li, Kailiang Duan

Proceedings Volume 7843, 784302 (2010) https://doi.org/10.1117/12.870061

KEYWORDS: Fiber Bragg gratings, Fiber lasers, Diffraction gratings, Reflectivity, Diffraction, Tunable lasers, Mirrors, Optical fibers, Semiconductor lasers

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Proceedings Article | 17 November 2010 Paper

Theoretical analysis of light transmission in a perfectly circular double clad fiber using coupled mode method

Zhongnan Xu, Zejin Liu, Kailiang Duan, Wei Zhao

Proceedings Volume 7843, 784313 (2010) https://doi.org/10.1117/12.865515

KEYWORDS: Single mode fibers, Cladding, Refractive index, Fiber couplers, Light wave propagation, Fiber lasers, Polarization, Geometrical optics, Samarium, Optoelectronics

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Proceedings Article | 5 November 2010 Paper

An analytical investigation of excitonic absorption in terahertz-driven quantum wells

Tong-Yi Zhang, Wei Zhao

Proceedings Volume 7854, 78540I (2010) https://doi.org/10.1117/12.868775

KEYWORDS: Electroluminescent displays, Terahertz radiation, Quantum wells, Near infrared, Absorption, Excitons, Chemical elements, Polarization, Semiconductors, Quantum optics

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Proceedings Article | 24 February 2010 Paper

Ultracompact wave plates by air holes periodic dielectric waveguides

Wenfu Zhang, Jihong Liu, Wei-Ping Huang, Wei Zhao

Proceedings Volume 7609, 76091H (2010) https://doi.org/10.1117/12.845956

KEYWORDS: Waveguides, Dielectrics, Birefringence, Photonic integrated circuits, Dielectric polarization, Wave plates, Finite-difference time-domain method, Photonics, Radio propagation, Telecommunications

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Proceedings Article | 12 February 2010 Paper

Spatial and temporal evolution of transient stimulated-Brillouin-scattering slow-light pulse in an optical fiber

Liyong Ren, Yanlong Yang, Wei Zhao, Yasuo Tomita

Proceedings Volume 7612, 761207 (2010) https://doi.org/10.1117/12.840631

KEYWORDS: Acoustics, Optical fibers, Photonics, Transient nonlinear optics, Distortion, Photonic crystal fibers, Slow light, Phonons, Scattering, Nonlinear optics

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Proceedings Article | 10 February 2009 Paper

Generation of fiber tunable high-power picosecond laser pulse

Hongjun Liu, Cunxiao Gao, Jintao Tao, Wei Zhao, Yishan Wang

Proceedings Volume 7126, 712618 (2009) https://doi.org/10.1117/12.821882

KEYWORDS: Picosecond phenomena, Fiber amplifiers, Semiconductor lasers, Fiber lasers, Amplifiers, Switches, Diodes, Optical amplifiers, Tunable filters, Optical filters

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Proceedings Article | 11 November 2008 Paper

Characteristics of active mode-locked fiber ring laser based on semiconductor optical amplifier

Shuangyi Yan, Jianguo Zhang, Jun Zhou, Wei Zhao

Proceedings Volume 7134, 71342X (2008) https://doi.org/10.1117/12.802517

KEYWORDS: Fiber lasers, Mode locking, Pulsed laser operation, Modulation, Semiconductor lasers, Modulators, Optical amplifiers, Semiconductor optical amplifiers, Tunable lasers, Electronics

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SPIE Journal Paper | 1 October 2008

Broadband and wide field of view foveated imaging system in space

Xiaoxia Zhao, Yongjun Xie, Wei Zhao

OE, Vol. 47, Issue 10, 103202, (October 2008) https://doi.org/10.1117/12.10.1117/1.3000432

KEYWORDS: Microelectromechanical systems, Imaging systems, Mirrors, Modulation transfer functions, Cameras, Deformable mirrors, Image resolution, Wavefronts, Optical engineering, Off axis mirrors

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SPIE Journal Paper | 1 October 2008

Laser distribution by optical fiber bundle in the ultrawideband antenna array

Chi Ruan, Wei Zhao, Baiyu Liu, Hongjun Liu

OE, Vol. 47, Issue 10, 104302, (October 2008) https://doi.org/10.1117/12.10.1117/1.3005370

KEYWORDS: Optical fibers, Laser energy, Fiber lasers, Antennas, Picosecond phenomena, Pulsed laser operation, Beam shaping, Cladding, Laser optics, Electromagnetism

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Proceedings Article | 4 January 2008 Paper

Time-domain terahertz spectroscopy and applications on drugs and explosives

W. H. Fan, W. Zhao, G. H. Cheng, A. Burnett, P. Upadhya, J. Cunningham, E. Linfield, A. Davies

Proceedings Volume 6840, 68400T (2008) https://doi.org/10.1117/12.785002

KEYWORDS: Terahertz radiation, Absorption, Explosives, Packaging, Spectroscopy, Temperature metrology, Terahertz spectroscopy, Signal to noise ratio, Crystals, Thermal effects

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Proceedings Article | 29 January 2007 Paper

Self-starting 21-ps Ti:sapphire laser with high beam quality

Weijun Ling, Yishan Wang, Wei Zhao, Jinrong Tian, Jiangfeng Zhu, Zhiyi Wei

Proceedings Volume 6279, 62793U (2007) https://doi.org/10.1117/12.725718

KEYWORDS: Mode locking, Mirrors, Picosecond phenomena, Sapphire lasers, Pulsed laser operation, Semiconductors, Output couplers, Continuous wave operation, Reflectivity, Photonics

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Proceedings Article | 29 January 2007 Paper

Passive Q-switched fiber laser with SESAM in ytterbium-doped double-clad fiber

Cun-xiao Gao, Wei Zhao, Yi-shan Wang, Shao-lan Zhu, Guo-fu Chen, Yong-gang Wang

Proceedings Volume 6279, 62794G (2007) https://doi.org/10.1117/12.725390

KEYWORDS: Mirrors, Fiber lasers, Absorption, Electroluminescence, Q switches, Semiconductors, Q switched lasers, Gallium arsenide, Reflectivity, Ytterbium

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Proceedings Article | 29 January 2007 Paper

Ultra-short electromagnetic pulse used for target detection

Chi Ruan, Wei Zhao, Guo-Fu Chen, Bai-Yu Liu, Shao-Lan Zhu

Proceedings Volume 6279, 62795L (2007) https://doi.org/10.1117/12.725439

KEYWORDS: Electromagnetism, Target detection, Transistors, Antennas, Signal detection, Picosecond phenomena, Pulsed laser operation, Switches, Oscilloscopes, Semiconductor lasers

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Proceedings Article | 29 January 2007 Paper

Generation of short electrical pulses by photoconductive semiconductor switches triggered with a high-power laser diode

Tong-Yi Zhang, Shun-Xiang Shi, Wei Zhao

Proceedings Volume 6279, 627946 (2007) https://doi.org/10.1117/12.725369

KEYWORDS: Switches, Gallium arsenide, Semiconductors, High power lasers, Diodes, Semiconductor lasers, Pulse generators, Pulsed laser operation, Pulsed power, Optical semiconductors

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Proceedings Article | 17 January 2007 Paper

Multi-pulse operation of Yb3+-doped fiber mode-locked laser

L. Zh. Yang, Y. Wang, G. Chen, Y. Sh. Wang, W. Zhao

Proceedings Volume 6279, 62794D (2007) https://doi.org/10.1117/12.725385

KEYWORDS: Fiber lasers, Mode locking, Polarization, Ytterbium, Ultrafast phenomena, Pulsed laser operation, Optical isolators, Transmittance, Transient nonlinear optics, Laser applications

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Proceedings Article | 11 January 2007 Paper

High-power short-pulse fiber lasers

Guofu Chen, Wei Zhao, Yishan Wang, Guanglei Ding

Proceedings Volume 6279, 62791A (2007) https://doi.org/10.1117/12.725177

KEYWORDS: Fiber lasers, Amplifiers, Fiber amplifiers, Polarization, Optical isolators, Picosecond phenomena, Optical amplifiers, Pulsed laser operation, Mode locking, Interferometers

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Proceedings Article | 11 January 2007 Paper

Historical development and application of ultra fast diagnosis based on image tube in XIOPM

Wei Zhao, Xun Hou, Jin-Shou Tian

Proceedings Volume 6279, 627904 (2007) https://doi.org/10.1117/12.725054

KEYWORDS: Streak cameras, Cameras, Microchannel plates, Temporal resolution, Femtosecond phenomena, Diffraction, Spatial resolution, Imaging systems, Infrared cameras, Ultrafast phenomena

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Proceedings Article | 4 October 2006 Paper

Multi-wavelength erbium-doped fiber lasers on the assistance of high-nonlinear photonic-crystal fibers

Xueming Liu, Wei Zhao

Proceedings Volume 6351, 63513O (2006) https://doi.org/10.1117/12.688531

KEYWORDS: Fiber lasers, Fiber Bragg gratings, Photonic crystal fibers, Polarization, Laser stabilization, Four wave mixing, Switching, Tunable lasers, Transient nonlinear optics, Dispersion

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Proceedings Article | 10 June 2006 Paper

Ultra-broadband optical parametric chirped pulse amplification by the matching of both the group velocity and pulse front

Hongjun Liu, Wei Zhao, Yishan Wang, Hongying Wang, Xiaoli Li

Proceedings Volume 6344, 634408 (2006) https://doi.org/10.1117/12.693422

KEYWORDS: Dispersion, Transient nonlinear optics, Signal processing, Solids, Computer simulations, Wave propagation, Geometrical optics, Laser applications, Nonlinear crystals, Phase matching

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Proceedings Article | 10 June 2006 Paper

Bit-wise volumetric storage in transparent materials by ultrafast laser

Guanghua Cheng, Yishan Wang, Guofu Chen, Wei Zhao, Haining Men, Chuandong Sun

Proceedings Volume 6344, 634417 (2006) https://doi.org/10.1117/12.693589

KEYWORDS: Femtosecond phenomena, Modulation, Optical storage, 3D optical data storage, Confocal microscopy, Ultrafast lasers, Laser development, Polymethylmethacrylate, Optical amplifiers, Silica

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Proceedings Article | 9 June 2006 Paper

Precise processing of transparent material with femtosecond laser pulses

Lin Ma, Shunxiang Shi, Guanghua Cheng, Wei Zhao, Guofu Chen

Proceedings Volume 6149, 614935 (2006) https://doi.org/10.1117/12.674323

KEYWORDS: Femtosecond phenomena, Waveguides, Modulation, Glasses, Silica, Micromachining, Optical components, 3D optical data storage, Pulsed laser operation, Diffraction gratings

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Proceedings Article | 9 June 2006 Paper

Fabrication of microstructured polymer optical fiber preform

Yani Zhang, Lili Wang, Liyong Ren, Tonghai Li, Xuezhong Wang, Wei Zhao, Runcai Miao

Proceedings Volume 6149, 61491Y (2006) https://doi.org/10.1117/12.674260

KEYWORDS: Polymerization, Polymethylmethacrylate, Polymers, Polymer optical fibers, Structured optical fibers, Transmittance, Photomicroscopy, Photonic crystal fibers, Optical fibers, Glasses

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Proceedings Article | 24 December 2005 Paper

High-power double-clad large-mode-area photonic crystal fibre laser

Kang Li, Yishan Wang, Wei Zhao, Guofu Chen, Qinjun Peng, Dafu Cui, Zuyan Xu

Proceedings Volume 6028, 60280P (2005) https://doi.org/10.1117/12.667148

KEYWORDS: Cladding, Fiber lasers, High power lasers, Mirrors, Photonic crystal fibers, Near field optics, Near field, Collimation, Laser crystals, Physics

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Proceedings Article | 24 December 2005 Paper

Experimental research on femtosecond mode-locked fiber lasers with potential applications to all-optical packet switching networks

Xiaoping Xie, Jianguo Zhang, Wei Zhao, Dapeng Deng, Yuanshan Liu, Suixin Zhang

Proceedings Volume 6028, 60280Q (2005) https://doi.org/10.1117/12.667149

KEYWORDS: Erbium, Fiber lasers, Light, Femtosecond phenomena, Mode locking, Fiber amplifiers, Polarization, Semiconductor lasers, Optical fibers, Transient nonlinear optics

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Proceedings Article | 15 December 2005 Paper

Phase locking of laser array

Yi Zhou, Liping Liu, Fanting Kong, Y. C. Chen, Qingjun Peng, Zhipei Sun, Zuyan Xu, Yisan Wang, Kang Li, Wei Zhao, Kotik Lee

Proceedings Volume 6028, 602803 (2005) https://doi.org/10.1117/12.667115

KEYWORDS: Fiber lasers, Mode locking, Resonators, Mirrors, Confocal microscopy, Spatial filters, Laser resonators, Laser crystals, Thermal effects, Crystals

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Proceedings Article | 3 December 2005 Paper

Franz-Keldysh effect and exciton ionization in a short one-dimensional semiconductor quantum wire

Tong-Yi Zhang, Wei Zhao

Proceedings Volume 6020, 60202A (2005) https://doi.org/10.1117/12.633605

KEYWORDS: Semiconductors, Excitons, Quantum wells, Absorption, Electrons, Polarization, Ionization, Optical properties, Optoelectronic devices, Dielectrics

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Proceedings Article | 31 January 2005 Paper

Optical absorption in semiconductor nanorings under electric and magnetic fields

Tong-Yi Zhang, Jun-Cheng Cao, Wei Zhao

Proceedings Volume 5624, (2005) https://doi.org/10.1117/12.572527

KEYWORDS: Absorption, Magnetism, Excitons, Semiconductors, Magnetic semiconductors, Optical semiconductors, Polarization, Roads, Computer simulations, Optical properties

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Proceedings Article | 12 May 2004 Paper

Researches on the CW Tm:Ho codoped silica fiber lasers operating at 2-um spectral region

Shufu Dong, Guofu Chen, Xianhua Wang, Wei Zhao

Proceedings Volume 5280, (2004) https://doi.org/10.1117/12.522159

KEYWORDS: Fiber lasers, Optical fibers, Thulium, Holmium, Continuous wave operation, Mirrors, Energy transfer, Absorption, Ions, Silica

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Proceedings Article | 12 May 2004 Paper

Writing waveguides in fused silica using a femtosecond laser

Lin Ma, Shunxiang Shi, Guanghua Cheng, L. Yu, Qing Liu, Guofu Chen, Wei Zhao

Proceedings Volume 5280, (2004) https://doi.org/10.1117/12.522144

KEYWORDS: Waveguides, Femtosecond phenomena, Silica, Glasses, Refractive index, Optical components, Fabrication, Integrated optics, 3D optical data storage, Photonic crystals

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Proceedings Article | 12 September 2002 Paper

Analysis and basic designs of a cw 3- and 2-micron cascade Ho3+: ZBLAN fiber laser

Shufu Dong, Guofu Chen, Xianhua Wang, Wei Zhao, Yishan Wang

Proceedings Volume 4916, (2002) https://doi.org/10.1117/12.482941

KEYWORDS: Fiber lasers, ZBLAN, Absorption, Continuous wave operation, Laser applications, Oscillators, Quantum cascade lasers, Tissues, Surgery, Numerical analysis

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Proceedings Article | 16 April 2001 Paper

All-solid-state and compact multiwavelength laser

Wei Zhao, Sanghong Zhao, Guofu Chen, Yishan Wang

Proceedings Volume 4267, (2001) https://doi.org/10.1117/12.424617

KEYWORDS: Crystals, Second-harmonic generation, Laser crystals, Nonlinear crystals, Sapphire lasers, Laser systems engineering, Solid state lasers, Ultraviolet radiation, Deep ultraviolet, Laser development

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Proceedings Article | 1 February 2000 Paper

CaS:Eu,Sm films prepared by pulsed laser deposition

Wenhui Fan, Wei Zhao, Ying Liu, Wenhua Zhu, Xun Hou

Proceedings Volume 3885, (2000) https://doi.org/10.1117/12.376978

KEYWORDS: Thin films, Upconversion, Infrared radiation, Sulfur, Calcium, Spatial resolution, Pulsed laser deposition, Visible radiation, Thin film deposition, Infrared lasers

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Proceedings Article | 4 November 1999 Paper

Self-mode-locking of the diode-pumped solid state LNA laser

Hongru Yang, Wenjie Xie, Jianhui Gu, Siu Chung Tam, Yee Loy Lam, Wei Zhao, Xinglong Yan, Shuicai Wang

Proceedings Volume 3898, (1999) https://doi.org/10.1117/12.368469

KEYWORDS: Laser resonators, Resonators, Mirrors, Semiconductor lasers, Mode locking, Solid state lasers, Pulsed laser operation, Laser vision correction, Monochromatic aberrations, Diode pumped solid state lasers

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Proceedings Article | 22 June 1999 Paper

Picosecond infrared streak camera with up-converting material

Xun Hou, Li Du, Wenhui Fan, LiHong Niu, XiaoQiu Zhang, Zenghu Chang, Maixia Gong, Wei Zhao, Binzhou Yang

Proceedings Volume 3516, (1999) https://doi.org/10.1117/12.350485

KEYWORDS: Infrared radiation, Calcium, Infrared cameras, Streak cameras, Picosecond phenomena, Samarium, Visible radiation, Pulsed laser operation, Near infrared, Infrared materials

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Proceedings Article | 1 April 1991 Paper

Picosecond x-ray streak camera improvement

Xun Hou, XiaoQiu Zhang, Maixia Gong, Chungu Zenghu, Zhiyuan Lei, Binzhou Yang, Hongbin Yu, Xiouqin Liu, Bing Shan, Shengshen Gao, Wei Zhao

Proceedings Volume 1358, (1991) https://doi.org/10.1117/12.23943

KEYWORDS: Streak cameras, X-rays, Picosecond phenomena, X-ray imaging, Imaging systems, Computing systems, Image processing, Ions, High power lasers, Laser optics

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