Magnetically Induced Transparency in Media with Helical Dichroic Structure.

Ashot H Gevorgyan,Gvidon K Matinyan,Meruzhan Z Hautyunyan,Nikolay A Vanyushkin,Hermine Gharagulyan,Ilya M Efimov,Mushegh S Rafayelyan,Sergey S Golik,Tatevik M Sarukhanyan

doi:10.3390/ma14092172

Abstract

In our paper, the magneto-optical properties of a dichroic cholesteric liquid crystal layer with large values of magneto-optical parameter g and low values of dielectric permittivity were investigated. The solutions of the dispersion equation and their peculiarities were investigated in detail. The specific properties of reflection, transmission, absorption, rotation, ellipticity spectra and also the spectra of ellipticity and azimuth of eigen polarization were investigated. The existence of a tunable linear and nonreciprocal transmission band was shown.

Highlights

We investigated the optical properties of Cholesteric liquid crystals (CLCs) that exhibit optical activity in the presence of an external static magnetic field
Solving the boundary value problem, we pass to the presentation of spectra of reflection, transmission, rotation of the plane of polarization and polarization ellipticity, photonic density of state (PDS), azimuth and ellipticity of the eigen polarizations (EPs), as well as the evolution of reflection, transmission, and absorption spectra with a change in the magneto-optical parameter g
Of We magneto-optical parameter g and low values of dielectric permittivity ε0 were investistudied the solutions of the dispersion equation and their peculiarities in detail

Summary

Introduction

Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. Artificially created or self-organizing, are present everywhere and their investigation is still ongoing We investigated the optical properties of CLCs that exhibit optical activity in the presence of an external static magnetic field. CLC without local birefringence in order to clearly distinguish the effects arising from the arising from the material helical dichroism. At the end of end of the section, we will consider the case of a CLC with local dielectric anisotropy, the will consider of a CLC with local dielectricfield anisotropy, andhelix andsection, we willwe take into accountthe thecase influence of external magnetic on the CLC we will take into account the influence of external magnetic field on the helix pitch pitch and on the principal values of the dielectric tensor components.

ModelsThe anddielectric

Results and Discussion

Conclusions