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Proceedings Paper

Noise of polymeric liquid crystal materials in high electric field
Author(s): Valery A. Loiko; Aleksander V. Konkolovich
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Paper Abstract

This paper gives an approximate theoretical model to forecast the noise spectrum of thin covers of polymeric material and analytical relation for Wiener's spectrum taking into account the near topological ordering of drop locations, the cooperative optical effects and the features of scattering by nematic drops allowing for the high electrical field. The relation for the spectrum is derived on the basis of the simulation of a thin polymeric film by an effective two- dimensional medium in the form of a stochastic amplitude-phase screen with the transmission function of an equivalent screen identified as a microdrop, the function being determined by illumination conditions and scattered radiation in the far field. The effective transmission function is inferred by comparing the results, obtained for the model proposed, with that of the anomalous diffraction. Approximation for scattering by a thin film of nematic drops that takes the configuration of a nematic director under high electrical field into account was used.

Paper Details

Date Published: 29 April 1996
PDF: 11 pages
Proc. SPIE 2795, Nonlinear Optics of Liquid and Photorefractive Crystals, (29 April 1996); doi: 10.1117/12.239232
Show Author Affiliations
Valery A. Loiko, Institute of Physics (Belarus)
Aleksander V. Konkolovich, Institute of Physics (Belarus)


Published in SPIE Proceedings Vol. 2795:
Nonlinear Optics of Liquid and Photorefractive Crystals
Gertruda V. Klimusheva; Andrey G. Iljin, Editor(s)

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