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Proceedings Paper

Light-induced director orientation in nematic cells with complex boundary conditions
Author(s): Denis Andrienko; Mikhailo F. Lednei; Igor P. Pinkevich
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Paper Abstract

Nematic cell in the field of light wave with spatially modulated intensity is considered. The influence of periodic spatial modulation of the director anchoring energy and the easy orientation axis at the cell surfaces on the director spatial distribution in the liquid crystal bulk under the action of light is investigated. It is shown that in both cases the director distribution takes the form of a superposition of the cosine gratings with periods that are the linear combinations of the light intensity and boundary condition periods. The diffraction of some gratings is estimated. The Frederiks transition threshold value is calculated for homeotropic cell with periodic modulation of the anchoring energy.

Paper Details

Date Published: 23 September 1998
PDF: 5 pages
Proc. SPIE 3488, Nonlinear Optics of Liquid and Photorefractive Crystals II, (23 September 1998); doi: 10.1117/12.323724
Show Author Affiliations
Denis Andrienko, Institute of Physics (Ukraine)
Mikhailo F. Lednei, Kiev National Univ. (Ukraine)
Igor P. Pinkevich, Kiev National Univ. (Ukraine)

Published in SPIE Proceedings Vol. 3488:
Nonlinear Optics of Liquid and Photorefractive Crystals II
Gertruda V. Klimusheva, Editor(s)

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