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Proceedings Paper

Liquid-crystal phase modulator used in DSPI
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Paper Abstract

Fundamental properties of phase modulation ability of a nematic liquid crystal cell is first studied. Based on the phase modulation property of the liquid crystal cell, a new type of speckle shearing interferometer is proposed and studied experimentally. In the method, a liquid crystal cell is employed as a phase shifter to implement the phase shifting method for the conventional speckle shearing interferometer. From the experiments to measure the deformation of an object, usefulness of the method is confirmed.

Paper Details

Date Published: 1 December 1991
Proc. SPIE 1554, Second International Conference on Photomechanics and Speckle Metrology, (1 December 1991);
Show Author Affiliations
Hirofumi Kadono, Saitama Univ. (Japan)
Satoru Toyooka, Saitama Univ. (Japan)

Published in SPIE Proceedings Vol. 1554:
Second International Conference on Photomechanics and Speckle Metrology
Fu-Pen Chiang; Fu-Pen Chiang, Editor(s)

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