14 November 2003 All-optical acousto-optic method for determination of photo-elastic constants of optical materials
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Abstract
We report on an all-optical method to determine the photo-elastic constants of optical materials. The two-laser technique is based on a combination of the acousto-optic effect and the laser generation of ultrasound. The laser generated ultrasonic wave produces a Raman-Nath type diffraction. The diffraction effciency is proportional to the photo-elastic constants of the material investigated. The constants are determined by careful analysis of the diffraction signals obtained from a stack comprising an unknown material and a reference material.
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Robert J. Filkins, Gary J. Saulnier, Pankaj K. Das, "All-optical acousto-optic method for determination of photo-elastic constants of optical materials", Proc. SPIE 5192, Optical Diagnostic Methods for Inorganic Materials III, (14 November 2003); doi: 10.1117/12.506561; https://doi.org/10.1117/12.506561
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