We introduce a novel phase-shifting pixellated interferometer based on a liquid-crystal spatial light modulator and simulate the expected performance. The phase-shifted frames are captured simultaneously, which reduces problems arising from vibrations and air turbulence. The liquid-crystal spatial light modulator is flexible and can be configured to provide a large number of phase-shift levels and geometries to reduce measurement error.
© 2006 Optical Society of America
Instrumentation, Measurement, and Metrology
Original Manuscript: October 6, 2005
Manuscript Accepted: November 17, 2005
K. L. Baker and E. A. Stappaerts, "A single-shot pixellated phase-shifting interferometer utilizing a liquid-crystal spatial light modulator," Opt. Lett. 31, 733-735 (2006)