Liquid crystals under high-power nanosecond laser irradiation

Svetlana G. Lukishova

doi:10.1117/12.2008612

5 March 2013 Liquid crystals under high-power, nanosecond laser irradiation

Svetlana G. Lukishova

Proceedings Volume 8642, Emerging Liquid Crystal Technologies VIII; 86420A (2013) https://doi.org/10.1117/12.2008612
Event: SPIE OPTO, 2013, San Francisco, California, United States

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).

Citation Download Citation

Svetlana G. Lukishova "Liquid crystals under high-power, nanosecond laser irradiation", Proc. SPIE 8642, Emerging Liquid Crystal Technologies VIII, 86420A (5 March 2013); https://doi.org/10.1117/12.2008612

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