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Correction of Non–Common-Path Error for Extreme Adaptive Optics
DEQING REN; BING DONG; YONGTIAN ZHU; DAMIAN J. CHRISTIAN
2012-03
发表期刊Publications of the Astronomical Society of the Pacific
卷号124期号:913页码:247-253
其他摘要
The future direct imaging of exoplanets depends critically on wave-front corrections. Extreme adaptive optics is being proposed to meet such a critical requirement. One limitation to the performance of adaptive optics is the differential wave-front aberration that is not measured by a conventional wave-front sensor because of the so-called non–common-path error. In this article, we propose a simple approach that can be used to eliminate differential aberration with extreme adaptive optics and is optimized for best image performance or directly optimized for high-contrast coronagraphic imaging. The approach that we propose can correct differential aberration in a single step, which guarantees high accuracy and allows adaptive optics to correct the differential aberration on a real-time scale. This approach is based on an iterative optimization algorithm that commands the deformable mirror directly and uses the focal-plane point-spread function as a metric function to evaluate the correction performance.
关键词Extreme Adaptive Optics Non–common-path Error
学科领域自适应光学 ; 系外行星探测
文献类型期刊论文
条目标识符http://ir.niaot.ac.cn/handle/114a32/649
专题期刊论文
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GB/T 7714
DEQING REN,BING DONG,YONGTIAN ZHU,等. Correction of Non–Common-Path Error for Extreme Adaptive Optics[J]. Publications of the Astronomical Society of the Pacific,2012,124(913):247-253.
APA DEQING REN,BING DONG,YONGTIAN ZHU,&DAMIAN J. CHRISTIAN.(2012).Correction of Non–Common-Path Error for Extreme Adaptive Optics.Publications of the Astronomical Society of the Pacific,124(913),247-253.
MLA DEQING REN,et al."Correction of Non–Common-Path Error for Extreme Adaptive Optics".Publications of the Astronomical Society of the Pacific 124.913(2012):247-253.
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