Vol. 31, Issue 4, pp. 751-760 (2001)

Abstract

We report on the method of the chromatic dispersion determination of anisotropic refractive indices of homogeneously oriented layers of liquid crystals (LC). The experimental data have been obtained from transmission spectra of a plane parallel Fabry-Perot filter (FPF) filled with the liquid crystal under investigation. Physical basis, experimental techniques and mathematical procedures have been described. We assumed the perpendicular light incidence and the absence of absorption and scattering. The dispersion of both refractive indices has been determined over the visible spectrum. Values obtained for 5CB (K15 MERCK) during the test measurement appeared to be similar with those published in literature. Results for W602 and 1292 liquid crystalline mixtures made at the Institute of Chemistry Military University of Technology are given.