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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 11 — Jun. 1, 2012
  • pp: 1922–1924

Four-step spatial phase-shifting shearing interferometry from moiré configuration by triple gratings

Yang Song, Yunyun Chen, Jia Wang, Nan Sun, and Anzhi He  »View Author Affiliations


Optics Letters, Vol. 37, Issue 11, pp. 1922-1924 (2012)
http://dx.doi.org/10.1364/OL.37.001922


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Abstract

A spatial phase-shifting shearing interferometry is presented in this paper. The whole optical configuration is simple and consists of three Ronchi gratings. Four phase-shifted shearing interferograms can be obtained simultaneously. The explicit intensity distributions of shearing interferograms are given and a corresponding four-step spatial phase-shifting algorithm is proposed to extract phase information from the new interferometry. This spatial phase-shifting configuration is applied to extract phase projection of a propane flame and a mathematical error analysis is presented.

© 2012 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(050.5080) Diffraction and gratings : Phase shift
(100.6950) Image processing : Tomographic image processing
(120.2650) Instrumentation, measurement, and metrology : Fringe analysis
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.4120) Instrumentation, measurement, and metrology : Moire' techniques

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: December 19, 2011
Revised Manuscript: February 27, 2012
Manuscript Accepted: February 28, 2012
Published: May 23, 2012

Citation
Yang Song, Yunyun Chen, Jia Wang, Nan Sun, and Anzhi He, "Four-step spatial phase-shifting shearing interferometry from moiré configuration by triple gratings," Opt. Lett. 37, 1922-1924 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-11-1922

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