Phase-shift extraction for generalized phase-shifting interferometry

被引：97
|
作者：
Gao, Peng [1 ,2 ,3 ]
Yao, Baoli [1 ]
Lindlein, Norbert [2 ]
Mantel, Klaus
Harder, Irina
Geist, Eduard [2 ]
机构：
[1] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Beijing 100864, Peoples R China
[2] Univ Erlangen Nurnberg, Inst Opt Informat & Photon, Erlangen, Germany
[3] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
来源：
OPTICS LETTERS | 2009年 / 34卷 / 22期
关键词：
WAVE-FRONT RECONSTRUCTION; DIGITAL HOLOGRAPHY; ERROR; STEPS;
D O I：
10.1364/OL.34.003553
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A simple algorithm for blind extraction of phase shifts is proposed for generalized phase-shifting interferometry from only three interferograms. Based on the statistical property of the object wave, the algorithm calculates approximately the involved phase shifts as initial values. The extraction is further improved by an iterative method, considering the fact that the closer the phase shifts approach their real values, the more uniform the reconstructed reference wave will become. The feasibility of this algorithm is demonstrated by both simulation and experiment. (C) 2009 Optical Society of America
引用
收藏
页码：3553 / 3555
页数：3
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