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Focal plane wave-front sensing algorithm for high-contrast imaging
DOU JiangPei; REN DeQing; ZHU YongTian; ZHANG Xi
2009-08
Source PublicationScience in China Series G: Physics, Mechanics & Astronomy
Volume52Issue:8Pages:1284-1288
Abstract
High-contrast imaging provided by a coronagraph is critical for the direction imaging of the Earth-like planet orbiting its bright parent star. A major limitation for such direct imaging is the speckle noise that is induced from the wave-front error of an optical system. We derive an algorithm for the wave-front measurement directly from 3 focal plane images. The 3 images are achieved through a deformable mirror to provide specific phases for the optics system. We introduce an extra amplitude modulation on one deformable mirror configuration to create an uncorrelated wave-front, which is a critical procedure for wave-front sensing. The simulation shows that the reconstructed wave-front is consistent with the original wave-front theoretically, which indicates that such an algorithm is a promising technique for
the wave-front measurement for the high-contrast imaging.
KeywordHigh-contrast Imaging Multi-image Algorithm Speckle Nulling Technique Wave-front Sensing
Subject Area系外行星探测
WOS IDWOS:000267593300020
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.niaot.ac.cn/handle/114a32/574
Collection中国科学院南京天文光学技术研究所_期刊论文
天文光谱和高分辨成像技术研究室_期刊论文
Recommended Citation
GB/T 7714
DOU JiangPei,REN DeQing,ZHU YongTian,et al. Focal plane wave-front sensing algorithm for high-contrast imaging[J]. Science in China Series G: Physics, Mechanics & Astronomy,2009,52(8):1284-1288.
APA DOU JiangPei,REN DeQing,ZHU YongTian,&ZHANG Xi.(2009).Focal plane wave-front sensing algorithm for high-contrast imaging.Science in China Series G: Physics, Mechanics & Astronomy,52(8),1284-1288.
MLA DOU JiangPei,et al."Focal plane wave-front sensing algorithm for high-contrast imaging".Science in China Series G: Physics, Mechanics & Astronomy 52.8(2009):1284-1288.
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