What question did this study set out to answer?

This research aims to explore the excitation conditions and control mechanisms for chiral optical Tamm states.

April 4, 2026

Coupling of Chiral Optical Tamm States into a Single Mode of a Hybrid Structure

Key Points

This research aims to explore the excitation conditions and control mechanisms for chiral optical Tamm states.
Numerical modeling of hybrid optical structures
Analysis of transmission coefficients under varying parameters
Investigation of light polarization effects on state excitation
Control over transmission coefficient and spectral characteristics is achievable.
Incident light polarization significantly affects excitation efficiency.
The hybrid mode can transition to a single Fabry–Pérot-type mode with increased coupling.

Abstract

The conditions for excitation and the possibilities of effective control of two coupled chiral optical Tamm states arising at the boundaries of a cholesteric liquid crystal interfaced with polarization-preserving anisotropic mirrors are investigated. Using numerical modeling, it is shown that varying the parameters makes it possible to control the magnitude of the transmission coefficient of the structure, the tuning of spectral characteristics, as well as the profile of the local field intensity. The polarization of the incident light significantly influences the efficiency of state excitation. It is demonstrated that the hybrid mode of the two chiral optical Tamm states smoothly transforms into a single Fabry–Pérot-type mode as the coupling between them increases.

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