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浏览/检索结果: 共13条，第1-10条 帮助 限定条件 内容类型：会议论文    专题：长春光学精密机械与物理研究所    第一署名单位    第一作者单位    通讯作者单位     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 White-light spectral scanning interferometry for surface measurement system (EI CONFERENCE) 会议论文 6th International Symposium on Precision Engineering Measurements and Instrumentation, August 8, 2010 - August 11, 2010, Hangzhou, China Wang C.; Cao N.; Lu J.; Guan J. 收藏  |  浏览/下载：19/0  |  提交时间：2013/03/25 The paper introduces the white-light spectral scanning interferometry for surface measurement. This interferometry can be used to measure the roughness of both smooth surfaces and those with large step heights. This real-time surface measurement can be achieved using acousto-optic tuneable filtering (AOTF) technique without mechanical scanning. At first  the structure and principle of this interferometry is introduced. Then the algorithm of the surface roughness measurement is proposed. What's more  the experiment with standard test piece is conducted. Compared with the traditional laser-light interferometry  the data shows that the proposed method has a higher accuracy which is proved to be nano-scale. A conclusion is given at last in which the superiorities and the limitations of the proposed system were discussed. 2010 SPIE.   High power diode pumped Vertical External-cavity Surface-emitting Lasers (VECSELS) (EI CONFERENCE) 会议论文 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 Lu G. G.; He C. F.; Shan X. N.; Qin L.; Yan C. L.; Ning Y. Q.; Wang L. J. 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 2006 Lu G. G.; He C. F.; Shan X. N.; Qin L.; Yan C. L.; Ning Y. Q.; Wang L. J. 收藏  |  浏览/下载：5/0  |  提交时间：2013/03/28 Compound telescope - art. no. 628910 会议论文 2006 Lu Z. W.; Zhang N.; Liu H.; Li F. Y.; Sun Q. 收藏  |  浏览/下载：2/0  |  提交时间：2013/03/28 Theoretical results of vertical external cavity surface emitting laser (VECSEL) (EI CONFERENCE) 会议论文 IRMMW-THz 2006 - 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics, Sep 18 - 22 2006, Shanghai, China Chun F. H.; Lu G. G.; Shan X. N.; Qin L.; Yan C. L.; Ning Y. Q.; Wang L. J. 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 2006 He C. F.; Lu G. G.; Shan X. N.; Qin L.; Yan C. L.; Ning Y. Q.; Wang L. J. 收藏  |  浏览/下载：13/0  |  提交时间：2013/03/28 Compound telescope (EI CONFERENCE) 会议论文 Novel Optical Systems Design and Optimization IX, August 15, 2006 - August 16, 2006, San Diego, CA, United states Lu Z.; Zhang N.; Liu H.; Li F.; Sun Q. 收藏  |  浏览/下载：21/0  |  提交时间：2013/03/25 Compound telescope is a new type of space optical system. It uses the concept of compound eyes and the property of diffractive lens. With the help of diffractive lens  the diffractive optical system could become lighter weight  lower cost  and looser tolerance. And with the help of compound-eye configuration  the field of view is expanded. A design example of compound diffractive optical system is given. It is composed of many diffractive telescope of F/4  200mm aperture  0.1 degrees field of view. It is shown that the whole system can approximately attain the diffraction limit over wide field of view.   Vertical-external-cavity surface-emitting lasers operating at different wavelength: design, numerical simulation, and characteristics - art. no. 602004 会议论文 2005 Yan C. L.; Qin L.; Shan X. N.; Lu G. G.; He C. F.; Sun Y. F.; Li T.; Ning Y. Q.; Wang L. J.; Jiang H. L. 收藏  |  浏览/下载：8/0  |  提交时间：2013/03/28 980nm high power Vertical External-cavity Surface-emitting Semiconductor Lasers (VECSEL) (EI CONFERENCE) 会议论文 Optoelectronic Materials and Devices for Optical Communications, November 7, 2005 - November 10, 2005, Shanghai, China Lu G.-G.; He C.-F.; Shan X.-N.; Li T.; Sun Y.-F.; Qin L.; Yan C.-L.; Ning Y.-Q.; Wang L.-J. 收藏  |  浏览/下载：12/0  |  提交时间：2013/03/25 We describe the design  fabrication  and calculation characteristics of the 980nm high-power diode-pumped vertical external-cavity surface-emitting laser(VECSEL).From our calculation  the VECSEL with active region of InGaAs/GaAsP/AlGaAs system can operate near 1w in a single transverse mode.   Theoretical analysis of 980nm high power vertical external-cavity surface-emitting semiconductor laser (VECSEL) - art. no. 60280X 会议论文 2005 He C. F.; Lu G. G.; Shan X. N.; Sun Y. F.; Li T.; Qin L.; Yan C. L.; Ning Y. C.; Wang L. J. 收藏  |  浏览/下载：7/0  |  提交时间：2013/03/28