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浏览/检索结果: 共3条，第1-3条 帮助 限定条件 内容类型：会议论文     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 Design and Performance of a New Generation, Compact, Low Cost, Very High Doppler Precision and Resolution Optical Spectrograph 会议论文 Conference on Ground-Based and Airborne Telescopes IV, Amsterdam, NETHERLANDS, 2012-07-01 作者:  Ge, J;  Zhao, B;  Powell, S;  Wang, J;  Fletcher, A 收藏  |  浏览/下载：24/0  |  提交时间：2015/11/26 high Doppler precision  exoplanets  habitable zone  survey  GKM dwarfs  high spectral resolution  optical spectrograph and radial velocity   Performance and sensitivity of Low Resolution Spectrographs for LAMOST 会议论文 San Diego, California, USA, 2010-6-27 Yonghui Hou; Yongtian Zhu; Zhongwen Hu; Lei Wang; Jianing Wang 收藏  |  浏览/下载：27/0  |  提交时间：2014/01/06 spectrograph  multi-fibers  spectra survey.   Manufacturing and testing of the line-array fiber-optic image slicer based on silicon V-grooves (EI CONFERENCE) 会议论文 MEMS/MOEMS Technologies and Applications III, November 12, 2007 - November 14, 2007, Beijing, China Liang J.; Guo P.; Liang Z.; Zhu Y.; Hou F.; Yao J. 收藏  |  浏览/下载：15/0  |  提交时间：2013/03/25 Linear fiber-optic image slicer is used more and more in spatial exploration and imaging system. In this paper  a plane arranging method of fiber-optic array based on Si-V grooves is established in order to improve the accuracy and reduce the cost of manufacturing. Firstly  the Si-V groove array is micro-machined with anisotropic etching process  then optical fibers are placed in the grooves orderly with plane arranging method. Secondly  the end surfaces of the device are polished  also the linear fiber-optic image slicer is packaged. Finally  some parameters are tested  including structure parameters  transmittivity and vibration test. Experimental results indicate that the maximum error accumulated in 2000 periods of the Si-V grooves is 0.5 m  the error of the height in Si-V grooves is less than 0.15m  the roughness of the end surface is less than 0.9nm. The transmittivity of the linear fiber-optic image slicer that without optical film is 51.46% at the wavelength of 632.8nm. After random vibration experiment  the ratio of the broken fiber increased by 0.1%. While the temperature reached 320C  the stress of epoxy will be 130Mpa  which is close to the limit resistance stress of 139Mpa  some cracks appeared.