Spectral and polarization properties of 'cholesteric liquid crystal - phase plate - metal' structure

TL;DR

This paper studies localized surface modes in a layered structure involving cholesteric liquid crystal, phase plate, and metal, demonstrating controllable nonreciprocal light transmission influenced by external fields and polarization.

Contribution

It introduces the analysis of optical Tamm-like states in a cholesteric liquid crystal-based structure and shows how their transmission can be externally controlled.

Findings

Identification of localized surface modes analogous to Tamm states.

Demonstration of nonreciprocal polarization-dependent transmission.

Control of transmission spectrum via external fields and polarization.

Abstract

We investigate the localized surface modes in a structure consisting of the cholesteric liquid crystal layer, a phase plate, and a metal layer. These modes are analogous to the optical Tamm states. The nonreciprocal transmission of polarized light propagating in the forward and backward directions is established. It is demonstrated that the transmission spectrum can be controlled by external fields acting on the cholesteric liquid crystal and by varying the plane of polarization of the incident light. [The text is presented both in English (pp 1-9) and in Russian (pp 10-19)]