A new phase retrieval algorithm with pure generalized three-step phase-shifting under matrix norm processing. Issue 11 (25th June 2019)

• Record Type: Journal Article
• Authors: Han, Hao; Wang, Yawei; Xu, Yuanyuan; Ji, Ying; Xie, Bing; Shen, Qibao
• Is Part Of: Journal of modern optics. Volume 66:Issue 11(2019)
• Page Start: 1252
• Page End: 1258
• Publication Date: 2019-06-25
• Subjects: Phase-shifting interferometry -- phase retrieval -- matrix norm -- generalized phase shifter; Optics -- Periodicals; 535
• DOI: 10.1080/09500340.2019.1611967
• Languages: English
• ISSNs: 0950-0340

Abstract

ABSTRACT: Phase-shifting interferometry (PSI) is one of the most effective techniques in imaging a phase specimen, in which the phase retrieval is a basic and significant process. A new phase retrieval method based on the matrix norm algorithm in PSI is proposed in this paper. In this algorithm, the value of phase shift can be determined by three different matrix norms of the intensity difference between two phase-shifted interferograms, and then the phase can be retrieved. Neither the iterative calculation nor the extra measurements of other parameters are necessary on account of this algorithm which only requires three phase-shifted interferograms. The feasibility and accuracy of this algorithm are demonstrated by the simulated results. Experimentally, the generalized phase shift can be realized by a simple device which adjusting the angle of glass accurately. It is found that this algorithm has a good application prospect in the field of dynamic imaging.