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

Andrea Hettwer; Jochen Kranz; Johannes Schwider

doi:10.1117/1.602453

1 April 2000 Three channel phase-shifting interferometer using polarization-optics and a diffraction grating

Andrea Hettwer, Jochen Kranz, Johannes Schwider

Optical Engineering, Vol. 39, Issue 4, (April 2000). https://doi.org/10.1117/1.602453

A modified Michelson interferometer is described by which three, by - ?/2, 0 and + ?/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.

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Andrea Hettwer, Jochen Kranz, and Johannes Schwider "Three channel phase-shifting interferometer using polarization-optics and a diffraction grating," Optical Engineering 39(4), (1 April 2000). https://doi.org/10.1117/1.602453

Published: 1 April 2000

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