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Proceedings Paper

Large aperture laser beam attenuator using electro-optic gratings
Author(s): Suning Tang; Yuanji Tang; Baofeng Duan; Thomas S. Hartwick; James Foshee
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Paper Abstract

This paper provides research progress in the development of fast electro-optic gratings for high energy laser beam attenuations. The electro-optic phase grating is formed by the phase separation of small liquid crystals droplets from a polymerizing organic matrix using holographic interference technique. The formed grating separates the incident laser beam into two output beams: the transmitted and diffracted beam, whose intensities can be electrically adjusted through electro-optic effect. The fast electro-optic gratings have a very fast electro-optic response time of 50 &mgr;s is with diffraction efficiency above 99%.

Paper Details

Date Published: 9 February 2007
PDF: 11 pages
Proc. SPIE 6487, Emerging Liquid Crystal Technologies II, 64870D (9 February 2007); doi: 10.1117/12.696790
Show Author Affiliations
Suning Tang, Crystal Research, Inc. (United States)
Yuanji Tang, Crystal Research, Inc. (United States)
Baofeng Duan, Crystal Research, Inc. (United States)
Thomas S. Hartwick, Crystal Research, Inc. (United States)
James Foshee, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 6487:
Emerging Liquid Crystal Technologies II
Liang-Chy Chien, Editor(s)

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