Amplitude metrics for field retrieval with hard-edged and uniformly illuminated apertures

被引:18
|
作者
Thurman, Samuel T. [1 ]
DeRosa, Ryan T. [1 ]
Fienup, James R. [1 ]
机构
[1] Univ Rochester, Inst Opt, Rochester, NY 14627 USA
关键词
WAVE-FRONT RECONSTRUCTION; PHASE-RETRIEVAL; INTENSITY MEASUREMENTS; ALGORITHMS; DIVERSITY; IMAGES;
D O I
10.1364/JOSAA.26.000700
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
In field retrieval, the amplitude and phase of the generalized pupil function for an optical system are estimated from multiple defocused measurements of the system point-spread function. A baseline field reconstruction algorithm optimizing a data consistency metric is described. Additionally, two metrics specifically designed to incorporate a priori knowledge about pupil amplitude for hard-edged and uniformly illuminated aperture systems are given. Experimental results demonstrate the benefit of using these amplitude metrics in addition to the baseline metric. (C) 2009 Optical Society of America
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页码:700 / 709
页数:10
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