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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
Source PublicationAdvanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment
Volume8417
Issue8417
PagesVol.8417 1A-1-8
Conference Date2012-4-26
Conference PlaceXiamen, China
Funding OrganizationThe International Society for Optical Engineering
PublisherSPIE
Abstract
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.
KeywordFixed Delay Michelson Interferometer Field Compensation Interference Component Smart Structure
Subject Area系外行星探测
Document Type会议论文
Identifierhttp://ir.niaot.ac.cn/handle/114a32/667
Collection中国科学院南京天文光学技术研究所_会议论文
天文光谱和高分辨成像技术研究室_会议论文
Recommended Citation
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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