机构

• 长春光学精密机械与... [19]
• 高能物理研究所 [3]
• 遥感与数字地球研究所 [1]

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• OAI收割 [23]

内容类型

• 会议论文 [23]

发表日期

• 2018 [1]
• 2012 [2]
• 2009 [1]
• 2008 [2]
• 2006 [4]
• 2005 [7]
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浏览/检索结果: 共23条，第1-10条 帮助 限定条件 内容类型：会议论文     条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择提交时间升序提交时间降序发表日期升序发表日期降序题名升序题名降序作者升序作者降序 Status of CAEP THz Free Electron Laser Oscillator 会议论文  OAI收割 Shanghai China, 2018 作者:  X. Yang;  M. Li;  T.H. He;  C.L. Lao;  P. Li   |  收藏  |  浏览/下载：26/0  |  提交时间：2019/03/08 KW-output high beam quality diode laser array source (EI CONFERENCE) 会议论文  OAI收割 2012 International Conference on Optoelectronics and Microelectronics, ICOM 2012, August 23, 2012 - August 25, 2012, Changchun, China 作者:  Zhang J.;  Wang L.;  Wang L.;  Wang L.;  Liu Y. 收藏  |  浏览/下载：21/0  |  提交时间：2013/03/25 With the advantages of small volume  light weight  high efficiency and long lifespan  diode laser has been widely applied to industrial processing. Presently  for laser used as processing light source needs to amount to dozens of KW per cm2 of power density  how to increase power output and get smaller light spot for diode laser becomes a key problem. It is introduced that by designing beam shaping by ourselves and making use of optical system for beam blooming and focusing  808nm laser array composed of 20 bars eventually achieves the 1001.5w power output  coupling efficiency at 90%  11mm2 of light spot through experiments  which enables diode laser to be directly applied to cladding  welding and so on. 2012 IEEE.   KW-output High Beam Quality Diode Laser Array source 会议论文  OAI收割 2012 作者:  Zhang J.;  Liu Y.;  Liu Y.;  Liu Y.;  Zhang J. 收藏  |  浏览/下载：13/0  |  提交时间：2013/03/28 Ultraviolet photodetector fabricated from atomic-layer-deposited ZnO films (EI CONFERENCE) 会议论文  OAI收割 Shan C. X.; Zhang J. Y.; Yao B.; Shen D. Z.; Fan X. W.; Choy K. L. 收藏  |  浏览/下载：20/0  |  提交时间：2013/03/25 Zinc oxide (ZnO) films have been prepared on glass substrate in layer-by-layer mode using an atomic-layer deposition (ALD) technique  and a metal-semiconductor-metal structured photodetector has been fabricated on the ZnO films employing interdigital Au as metal contacts. The photodetector shows a cutoff wavelength at around 390 nm and has an obvious responsivity in the whole UVA spectral range. Because the response of the ZnO photodetector covers the whole UV solar irradiation that can reach the earth  the photodetector promises to be useful in monitoring UV solar irradiation to protect people from harm caused by the solar irradiation. Furthermore  the capability of preparing large-area uniform ZnO films of ALD makes it favorable for possible mass production of this kind of photodetector. 2009 American Vacuum Society.   High power diode laser with beam coupling (EI CONFERENCE) 会议论文  OAI收割 Optoelectronic Materials and Devices III, October 27, 2008 - October 30, 2008, Hangzhou, China 作者:  Wang L.;  Liu Y.;  Wang L.;  Liu Y.;  Liu Y. 收藏  |  浏览/下载：52/0  |  提交时间：2013/03/25 As the increasing applications of the semiconductor lasers in the laser processing  the single 2-D stack optic-power density has not satisfied the actual requirements. It demands to couple several diode laser stack beams to one to improve the brightness  and it becomes the central issue to adopt the appropriate beam coupling technology which would offer high quality and high efficiency. In this paper  it mainly introduces the beam shaping and the technology of spatial coupling  polarization coupling  and wavelength coupling. The coupling key elements are presented and indicated. Finally  the development of the diode laser on beam coupling in our country fell behind through analyzing the statement of the world. Our lab is studying on polarization coupling and wavelength coupling. We gain some results by phase  which the polarization coupling efficiency can achieve 90% for two LD stacks with seven bars whose luminous wavelength is 975nm and980nm.By two 808nm diode laser coupling  the efficiency of 60% can be achieved after focusing to the beam size of 22mm2. 2008 SPIE.   Drought monitoring and prediction over China 会议论文  OAI收割 2008 Dragon Symposium - Dragon 1 Programme Final Results 2004-2007, Beijing, China, April 21, 2008 - April 25,2008 Su; Chen, Y.; Menenti, M.; Sobrino, J.; Li, Z.-L.; Verhoef, W.; Wang, L.; Ma, Y.; Wan, L.; He, Y.; Liu, Q.H.; Li, C.; Wen, J.; Van Der Velde, R.; Van Helvoirt, M.; Lin, W.; Shan, X. 收藏  |  浏览/下载：16/0  |  提交时间：2014/12/07 Drought  Computer graphics  Computer networks  Conformal mapping  Earth sciences  Forecasting  Integer programming  Maps  Microfluidics  Monitoring  Parameter estimation  Satellites  Surface measurement  Surfaces  Water   High power diode pumped Vertical External-cavity Surface-emitting Lasers (VECSELS) (EI CONFERENCE) 会议论文  OAI收割 IRMMW-THz 2006 - 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics, September 18, 2006 - September 22, 2006, Shanghai, China 作者:  Qin L. 收藏  |  浏览/下载：12/0  |  提交时间：2013/03/25 We describe the theoretical analysis and calculations of the 980nm high-power diode-pumped vertical external cavity surface emitting laser (VECSEL). The VECSEL with active region of InGaAs/GaAsP/AlGaAs system can be operated near 500mw in a single transverse mode. 2006 IEEE.   High power diode pumped vertical external-cavity surface-emitting lasers (VECSELS) 会议论文  OAI收割 2006 作者:  Qin L. 收藏  |  浏览/下载：5/0  |  提交时间：2013/03/28 Theoretical results of vertical external cavity surface emitting laser (VECSEL) (EI CONFERENCE) 会议论文  OAI收割 IRMMW-THz 2006 - 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics, Sep 18 - 22 2006, Shanghai, China 作者:  Qin L. 收藏  |  浏览/下载：9/0  |  提交时间：2013/03/25 We calculate the characteristic parameters of 980nm infrared vertical external cavity surface emitting laser with the KP method and give the result of the relative longitudinal confinement factor  threshold gain and output power. 2006 IEEE.   Theoretical results of vertical external cavity surface emitting laser (VECSEL) 会议论文  OAI收割 2006 作者:  Qin L. 收藏  |  浏览/下载：13/0  |  提交时间：2013/03/28