The implementation of a new type of phase-shifting, self-referencing interferometer that simultaneously achieves the phase shift and separation of beams with a stationary diffraction grating is described. The capabilities of stroboscopic interferometry are demonstrated with results from an experiment in which the rapidly varying surface deformations of a sonically activated pellicle mirror are measured in a time-sliced fashion at 50-μsec intervals.
© 1987 Optical Society of America
Original Manuscript: May 26, 1987
Manuscript Accepted: July 24, 1987
Published: November 1, 1987
Osuk Y. Kwon, Dean M. Shough, and Rick A. Williams, "Stroboscopic phase-shifting interferometry," Opt. Lett. 12, 855-857 (1987)
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