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Multi-object fixed delay Michelson interferometer for astronomical observation
Kai Zhang; Yongtian Zhu; Lei Wang; Yi Chen; Liang Wang
2012-10-15
会议录名称Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment
卷号8417
期号8417
页码Vol.8417 1A-1-8
会议日期2012-4-26
会议地点Xiamen, China
会议主办者The International Society for Optical Engineering
出版者SPIE
摘要
Optical interferometry isn’t only widely applied into optical workshop, but also makes great contribution in astronomical observation. A multi-object fixed delay Michelson interferometer commissioned to search extra-solar planet (exoplanet) is introduced here. Fixed delay of 1.9mm, which is good for stellar radial velocity measuring precision, is obtained by two interference arms with different materials. This configuration has different refractive indexes and physical characteristics so that supplies wider field of view and better thermal stability. In addition, compact interference component with three glued prisms and smart structure are the other important features. Because of vibration influence, the combination among the prisms is a direct and effective method. And the reason why make the structure as small as possible is of central obscuration under the workspace of interferometer.
关键词Fixed Delay Michelson Interferometer Field Compensation Interference Component Smart Structure
学科领域系外行星探测
文献类型会议论文
条目标识符http://ir.niaot.ac.cn/handle/114a32/667
专题会议论文
推荐引用方式
GB/T 7714
Kai Zhang,Yongtian Zhu,Lei Wang,et al. Multi-object fixed delay Michelson interferometer for astronomical observation[C]:SPIE,2012:Vol.8417 1A-1-8.
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