Abstract
An investigation is made of the spatial dispersion of the permittivity of achiral liquid crystals with large-scale fluctuations. It is observed that for large correlation lengths the terms with spatial dispersion are anomalously large. The specific form of these terms is obtained for orientational fluctuations in a nematic and fluctuations of the deformations of the smectic layers in a smectic-A in an orienting magnetic field. It is shown that these effects may be observed optically by means of accurate measurements of the angular dependence of the refractive indices of electromagnetic waves.
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Zh. Éksp. Teor. Fiz. 114, 182–190 (July 1998)
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Gorkunov, M.V., Ryazanov, M.I. Fluctuational spatial dispersion in achiral liquid crystals. J. Exp. Theor. Phys. 87, 101–105 (1998). https://doi.org/10.1134/1.558631
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DOI: https://doi.org/10.1134/1.558631