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Proceedings Paper

Diffraction optical elements with nematic liquid crystals and their applications
Author(s): Ihar V. Stashkevitch
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Paper Abstract

In this paper consideration is being given to the principle underlying the operation of switchable diffraction elements based on the relief grating of isotropic materials and nematic liquid crystals contacting it. Electrical control of the phase grating diffraction efficiency has been experimentally realized. The problems of LC orientation on the relief substrate have been considered. Consideration has also been given to the optical diffraction lens with switchable focal lengths and to two-layer systems operating with radiation of any polarization. It has been demonstrated that LC having large value of optical anisotropy are most suitable for this application. The requirements to liquid crystals to be used in optical elements are covered.

Paper Details

Date Published: 1 February 1998
PDF: 5 pages
Proc. SPIE 3318, Liquid Crystals: Physics, Technology, and Applications, (1 February 1998); doi: 10.1117/12.300028
Show Author Affiliations
Ihar V. Stashkevitch, Belarussian State Univ. (Belarus)


Published in SPIE Proceedings Vol. 3318:
Liquid Crystals: Physics, Technology, and Applications
Jolanta Rutkowska; Stanislaw J. Klosowicz; Jerzy Zielinski; Jozef Zmija, Editor(s)

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