Abstract
Nematic liquid crystals (LCs) have remarkable peculiarity in laser beams: the same material may totally change its response to laser radiation owing to special preparation and/or the geometry of irradiation. They may be used for optical power limiting1 and, on the other hand, for high-damage-threshold optics2 and beam-quality sensors for high-power lasers.3
© 1999 Optical Society of America
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