Correction of Non–Common-Path Error for Extreme Adaptive Optics | |
DEQING REN; BING DONG; YONGTIAN ZHU; DAMIAN J. CHRISTIAN | |
2012-03 | |
Source Publication | Publications of the Astronomical Society of the Pacific |
Volume | 124Issue:913Pages:247-253 |
Other Abstract |
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. |
Keyword | Extreme Adaptive Optics Non–common-path Error |
Subject Area | 自适应光学 ; 系外行星探测 |
Document Type | 期刊论文 |
Identifier | http://ir.niaot.ac.cn/handle/114a32/649 |
Collection | 期刊论文 |
Recommended Citation 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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