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Optical efficiency of MEMS deformable mirror for adaptive optics
Cai DongmEi; Yao Jun; Jiang Wenhan
Volume7210
2009
Language英语
Indexed ByEi
Subtype会议论文
AbstractMEMS deformable mirror (DM) has yet to be incorporated into a facility AO instrument especially for atmospheric compensation. Apart from these drawbacks such as limited stroke, reliability, its optical efficiency should also be concerted. The wavefront corrector in AO system should existing high optical efficiency especially atmospheric compensation under faint stars. However the MEMS DM fabricated by surface process must have etch holes in the surface of mirror. The diffraction results from etch holes decrease its optical efficiency. An MEMS deformable mirror is fabricated by commercial PolyMUMPs. There is array of etch holes to ensure that the sacrifice layer is released fully. The far field intensity distribution was simulated. The result has been analyzed and used to constructed a simple modal of the studied MEMS DM.; MEMS deformable mirror (DM) has yet to be incorporated into a facility AO instrument especially for atmospheric compensation. Apart from these drawbacks such as limited stroke, reliability, its optical efficiency should also be concerted. The wavefront corrector in AO system should existing high optical efficiency especially atmospheric compensation under faint stars. However the MEMS DM fabricated by surface process must have etch holes in the surface of mirror. The diffraction results from etch holes decrease its optical efficiency. An MEMS deformable mirror is fabricated by commercial PolyMUMPs. There is array of etch holes to ensure that the sacrifice layer is released fully. The far field intensity distribution was simulated. The result has been analyzed and used to constructed a simple modal of the studied MEMS DM.
Conference NameProceedings of SPIE
Conference Date2009
Document Type会议论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/7865
Collection微细加工光学技术国家重点实验室(开放室)
Corresponding AuthorCai DongmEi
Affiliation中国科学院光电技术研究所
Recommended Citation
GB/T 7714
Cai DongmEi,Yao Jun,Jiang Wenhan. Optical efficiency of MEMS deformable mirror for adaptive optics[C],2009.
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