Phase shifting interferometry from two normalized interferograms with random tilt phase-shift

	Phase shifting interferometry from two normalized interferograms with random tilt phase-shift
	Liu, Fengwei 1,2; Wu, Yongqian 1; Wu, Fan 1
刊名	Optics Express
	2015
卷号	23 期号:15 页码:19932-19946
ISSN号	1094-4086
中文摘要	We propose a novel phase shifting interferometry from two normalized interferograms with random tilt phase-shift. The determination of tilt phase-shift is performed by extracting the tilted phase-shift plane from the phase difference of two normalized interferograms, and with the calculated tilt phase-shift value the phase distribution can be retrieved from the two normalized frames. By analyzing the distribution of phase difference and utilizing special points fitting method, the tilted phase-shift plane is extracted in three different cases, which relate to different magnitudes of tilts. Proposed method has been applied to simulations and experiments successfully and the satisfactory results manifest that proposed method is of high accuracy and high speed compared with the three step iterative method. Additionally, both open and closed fringe can be analyzed with proposed method. What's more, it cannot only eliminate the small tiltshift error caused by slight vibration in phase-shifting interferometry, but also detect the large tilt phase-shift in phase-tilting interferometry. Thus, it will relaxes the requirements on the accuracy of phase shifter, and the costly phase shifter may even be useless by applying proposed method in high amplitude vibrated circumstance to achieve high-precision analysis. © 2015 Optical Society of America.
英文摘要	We propose a novel phase shifting interferometry from two normalized interferograms with random tilt phase-shift. The determination of tilt phase-shift is performed by extracting the tilted phase-shift plane from the phase difference of two normalized interferograms, and with the calculated tilt phase-shift value the phase distribution can be retrieved from the two normalized frames. By analyzing the distribution of phase difference and utilizing special points fitting method, the tilted phase-shift plane is extracted in three different cases, which relate to different magnitudes of tilts. Proposed method has been applied to simulations and experiments successfully and the satisfactory results manifest that proposed method is of high accuracy and high speed compared with the three step iterative method. Additionally, both open and closed fringe can be analyzed with proposed method. What's more, it cannot only eliminate the small tiltshift error caused by slight vibration in phase-shifting interferometry, but also detect the large tilt phase-shift in phase-tilting interferometry. Thus, it will relaxes the requirements on the accuracy of phase shifter, and the costly phase shifter may even be useless by applying proposed method in high amplitude vibrated circumstance to achieve high-precision analysis. © 2015 Optical Society of America.
学科主题	Interferometry - Iterative methods - Phase shifters
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000361035300133
内容类型	期刊论文
源URL	[http://ir.ioe.ac.cn/handle/181551/7049]
专题	光电技术研究所_先光中心
作者单位	1.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan, China 2.University of Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Liu, Fengwei,Wu, Yongqian,Wu, Fan. Phase shifting interferometry from two normalized interferograms with random tilt phase-shift[J]. Optics Express,2015,23(15):19932-19946.
APA	Liu, Fengwei,Wu, Yongqian,&Wu, Fan.(2015).Phase shifting interferometry from two normalized interferograms with random tilt phase-shift.Optics Express,23(15),19932-19946.
MLA	Liu, Fengwei,et al."Phase shifting interferometry from two normalized interferograms with random tilt phase-shift".Optics Express 23.15(2015):19932-19946.