Fig. 1: Sample and experimental setup.
From: Tunable optical spin Hall effect in a liquid crystal microcavity
a Schematic structure of the tunable cavity in transmission configuration where the degree of the circular polarization can be measured. Sample substrate consists of an indium tin oxide transparent electrode (ITO) and two dielectric mirrors (DBR). The cavity between the parallel DBRs is filled with LC. Using external electric field \(\bar E\), the tilt angle θ of the liquid crystal molecular director and consequently the effective refractive index for the light at normal incidence can be changed. The experiment was performed for different polarizations of the incident light: vertical (V), horizontal (H), diagonal (D), and anti-diagonal (A). b Scheme of the experimental setup for transmission measurements
