Spatial carrier phase shifting method for the phase recovery from two interferograms with closed fringes

被引：4
|
作者：
Munoz-Maciel, Jesus [1 ]
Mora-Gonzalez, Miguel [1 ]
Duran-Ramirez, Victor M. [1 ]
Casillas-Rodriguez, Francisco J. [1 ]
Pena-Lecona, Francisco G. [1 ]
机构：
[1] Univ Guadalajara, Ctr Univ los Lagos, Enr Diaz de Leon 114, Lagos De Moreno 47460, Jalisco, Mexico
来源：
OPTICS COMMUNICATIONS | 2019年 / 437卷
关键词：
Fringe analysis; Phase recovery; Phase shifting; Spatial carrier; Interferogram evaluation; GRAM-SCHMIDT ORTHONORMALIZATION; PATTERN PHASE; ALGORITHM; INTERFEROMETRY; DEMODULATION; RETRIEVAL; EXTRACTION;
D O I：
10.1016/j.optcom.2018.12.055
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A procedure is developed to recover the phase from two interferograms with a non-constant phase shift between them. This method may find broad applications when environmental disturbances do not allow implementing traditional phase shifting techniques which normally require three or more images. A spatial carrier phase shifting method is implemented to analyze the two measured temporal phase shifted interferometric images. This approach is very fast, avoids the use of fringe normalization techniques, preserves good tolerance against small (lambda/20) or non-constant phase shifts, background and modulation variations and noise as tested in real and simulated data.
引用
收藏
页码：226 / 230
页数：5
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