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A single-shot pixellated phase-shifting interferometer utilizing a liquid-crystal spatial light modulator

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Abstract

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

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