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Proceedings Paper

Liquid crystals under high-power, nanosecond laser irradiation
Author(s): Svetlana G. Lukishova
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Paper Abstract

High-damage threshold liquid crystal optical elements are used for high-power laser applications as mirrors, waveplates and optical power limiters. Several nonlinear optical effects under high-power, nanosecond laser irradiation of liquid crystals will be outlined: (1) athermal helical pitch dilation and unwinding of cholesteric mirrors by the field of a light wave (in free space and in a laser resonator); (2) dependence of nonlinear refraction of liquid crystal on the laser beam diameter in presence of two-photon absorption; (3) cumulative effects in nonlinear absorption and refraction at low repetition rate (5-10 Hz); (4) feedback-free kaleidoscope of patterns in dye-doped liquid crystals (hexagons/stripes).

Paper Details

Date Published: 5 March 2013
PDF: 14 pages
Proc. SPIE 8642, Emerging Liquid Crystal Technologies VIII, 86420A (5 March 2013); doi: 10.1117/12.2008612
Show Author Affiliations
Svetlana G. Lukishova, Univ. of Rochester (United States)

Published in SPIE Proceedings Vol. 8642:
Emerging Liquid Crystal Technologies VIII
Liang-Chy Chien; Dick J. Broer; Vladimir Chigrinov; Tae-Hoon Yoon, Editor(s)

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