Interferometry

Three channel phase-shifting interferometer using polarization-optics and a diffraction grating

[+] Author Affiliations
Andrea Hettwer, Jochen Kranz, Johannes Schwider

University of Erlangen-Nuernberg, Lehrstuhl fuer Optik, Staudtstr 7/B2, 91058?Erlangen, Germany

Opt. Eng. 39(4), 960-966 (Apr 01, 2000). doi:10.1117/1.602453
History: Received Mar. 12, 1999; Revised July 15, 1999; Accepted Sep. 21, 1999
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Abstract

A modified Michelson interferometer is described by which three, by −π/2, 0 and +π/2 phase-shifted interferograms can be taken simultaneously by a single CCD camera using a binary diffraction grating and polarization optics. Hence measurements of dynamic events and in adverse conditions are possible. The experimental setup, first results and a mathematical error analysis are presented. © 2000 Society of Photo-Optical Instrumentation Engineers.

© 2000 Society of Photo-Optical Instrumentation Engineers

Citation

Andrea Hettwer ; Jochen Kranz and Johannes Schwider
"Three channel phase-shifting interferometer using polarization-optics and a diffraction grating", Opt. Eng. 39(4), 960-966 (Apr 01, 2000). ; http://dx.doi.org/10.1117/1.602453


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