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Optical cross modulation in nematic liquid-crystal films: application to $\chi ^{(3)}$ dispersion measurement on Rayleigh-line flank

F.N. Gadzhiev, N.I. Koroteev, G.A. Paityan

Moscow University Physics Bulletin 1988. 43. N 2. P. 27

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Annotation

Amplitude modulation is transferred from one laser beam to another in a planar-oriented mixture of nematic liquid crystals to determine the dispersion in the cubic nonlinearity $\chi ^{(3)}$ at a Rayleigh-line flank with a resolution of a few Hz. The anomalously large values are due in part to the collective behavior in the orientation ordering and in part to the anomalously large $\partial {\epsilon} / \partial T$ and dichroism. Measurements have been made on $x_{ijk}^{3}$, relaxation time, elastic moduli, and thermal diffusivity parallel and transverse to the liquid-crystal director.

Rissian citation:
Ф.Н. Гаджиев, Н.И. Коротеев, Г.А. Пайтян.
Оптическая кросс-модуляция в нематических жидкокристаллических пленках: применение к измерению дисперсии $\chi ^{(3)}$ в крыле рэлеевской линии.
Вестн. Моск. ун-та. Сер. 3. Физ. Астрон. 1988. № 2. С. 27.
Authors
F.N. Gadzhiev, N.I. Koroteev, G.A. Paityan
Department of General Physics and Wave Processes, Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
Issue 2, 1988

Moscow University Physics Bulletin

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