Noise of polymeric liquid crystal materials in high electric field

Valery A. Loiko; Aleksander V. Konkolovich

doi:10.1117/12.239232

29 April 1996 Noise of polymeric liquid crystal materials in high electric field

Valery A. Loiko, Aleksander V. Konkolovich

Proceedings Volume 2795, Nonlinear Optics of Liquid and Photorefractive Crystals; (1996) https://doi.org/10.1117/12.239232
Event: Nonlinear Optics of Liquid and Photorefractive Crystals, 1995, Ai-Danil, Crimea, Ukraine

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.

Citation Download Citation

Valery A. Loiko and Aleksander V. Konkolovich "Noise of polymeric liquid crystal materials in high electric field", Proc. SPIE 2795, Nonlinear Optics of Liquid and Photorefractive Crystals, (29 April 1996); https://doi.org/10.1117/12.239232

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