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Phase-shifts n pi/2 calibration method for phasestepping interferometry
Bai Fuzhong; Rao Changhui
Source PublicationOptics Express
Volume17Issue:19Pages:16861-16868
2009
Language英语
Indexed BySCI ; Ei
Subtype期刊论文
AbstractA novel phase-shifts n pi/2 calibration method for phase-stepping interferometry, in which the sum intensities and the squared sum of a series of phase-shifted interferograms are firstly calculated, and then by the minimization of the variances of these sums perform the n pi/2 phase-shifts calibration, is proposed in this paper. The proposed method can overcome effectively the effect of the variations of background and modulation intensities in interferograms with any phase structure, and it is also insensitive to the nonlinearity of phase shifter. Numerical simulation and experiments are implemented to verify the effectiveness of this method.; A novel phase-shifts n pi/2 calibration method for phase-stepping interferometry, in which the sum intensities and the squared sum of a series of phase-shifted interferograms are firstly calculated, and then by the minimization of the variances of these sums perform the n pi/2 phase-shifts calibration, is proposed in this paper. The proposed method can overcome effectively the effect of the variations of background and modulation intensities in interferograms with any phase structure, and it is also insensitive to the nonlinearity of phase shifter. Numerical simulation and experiments are implemented to verify the effectiveness of this method.
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/6116
Collection自适应光学技术研究室(八室)
Corresponding AuthorBai Fuzhong
Affiliation中国科学院光电技术研究所
Recommended Citation
GB/T 7714
Bai Fuzhong,Rao Changhui. Phase-shifts n pi/2 calibration method for phasestepping interferometry[J]. Optics Express,2009,17(19):16861-16868.
APA Bai Fuzhong,&Rao Changhui.(2009).Phase-shifts n pi/2 calibration method for phasestepping interferometry.Optics Express,17(19),16861-16868.
MLA Bai Fuzhong,et al."Phase-shifts n pi/2 calibration method for phasestepping interferometry".Optics Express 17.19(2009):16861-16868.
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