Simultaneous digital correction of amplitude and phase errors of retrieved wave-front in phase-shifting interferometry with arbitrary phase shift errors

被引：27

作者：

Cai, LZ ^{[1
]}

Liu, Q ^{[1
]}

Yang, XL ^{[1
]}

机构：

[1] Shandong Univ, Dept Opt, Jinan 250100, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2004年 / 233卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

phase-shifting interferometry; holographic interferometry; image reconstruction; phase retrieval; image processing;

D O I：

10.1016/j.optcom.2004.01.033

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Both the amplitude error and phase error retrieved in the recording plane in phase-shifting interferometry (PSI) have effects on the reconstructed wave-front in original object plane placed a distance away. We have proposed a simple and effective algorithm, which can simultaneously correct both kinds of wave errors caused by arbitrary and unequal phase shift errors in PSI for an off-lying object and then greatly improve the reconstructed object wave-front by digital image processing based on the statistic nature of diffraction field. The principles are explained, and a series of computer simulations are made to verify its feasibility. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：21 / 26

页数：6

共 15 条

[1] Phase-shift extraction and wave-front reconstruction in phase-shifting interferometry with arbitrary phase steps [J].