Vol. 44, Issue 4, pp. 555-566 (2014)

Abstract

This paper presents the investigation results of spatial chaotization of an optical field scattered by liquid crystals during phase transition liquid–liquid crystal under an electric field. Two stochastic parameters of the field, namely, Lyapunov’s maximal index and correlation exponent were chosen for this study. It has been established that maximum variances of phase inhomogeneities of the nematic liquid crystal correspond to maximum fluctuations of an order parameter under the temperature of phase transition liquid–liquid crystal. It has been found that the analysis of the radiation field scattered during the phase transition process in the liquid–liquid crystal allows to accurately determine the phase transition temperature and voltage of forming Williams’s domains.