Magnetically Induced Transparency in Media with Helical Dichroic Structure

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

doi:10.3390/ma14092172

Magnetically Induced Transparency in Media with Helical Dichroic Structure

Materials (Basel). 2021 Apr 23;14(9):2172. doi: 10.3390/ma14092172.

Authors

Ashot H Gevorgyan¹, Sergey S Golik^{1

2}, Nikolay A Vanyushkin¹, Ilya M Efimov¹, Mushegh S Rafayelyan³, Hermine Gharagulyan⁴, Tatevik M Sarukhanyan³, Meruzhan Z Hautyunyan³, Gvidon K Matinyan⁵

Affiliations

¹ School of Natural Sciences, Far Eastern Federal University, 10 Ajax Bay, Russky Island, 690922 Vladivostok, Russia.
² Institute of Automation and Control Processes, Far East Branch, Russian Academy of Sciences, 690041 Vladivostok, Russia.
³ Department of Physics, Yerevan State University, 1 Alex Manukyan Str., 0025 Yerevan, Armenia.
⁴ Institute of Chemical Physics NAS RA, 5/2, P. Sevak Str., 0014 Yerevan, Armenia.
⁵ Department of Agrarian Engineering, Armenian National Agrarian University, 74, Terian Str., 0009 Yerevan, Armenia.

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.

Keywords: cholesteric liquid crystal; eigen polarization; magnetically induced transparency; magneto-optical activity; spectra of absorption; spectra of reflection; spectra of transmission.