Magneto-optical properties of the photon echo: status of research and prospects of application

I.I Popov,N.S Vashurin,V.O Kompanets,S.E Putilin,E.A Vinogradov,S.V Chekalin,A.U Bahadurov,V.V Samartsev,M.G Gladush,A.A Kalachev,K.R Karimullin,A.V Naumov

doi:10.1051/epjconf/201716101010

Abstract

The results of the study of the polarization properties of the stimulated photon echo (SPE) excited at room temperature on free excitons and exciton states localized on surface defects of textured thin films are reported. The results of observation and investigation of the effect of the non-Faraday rotation of a femtosecond SPE in a textured thin film are presented. The physical processes occurring under the Faraday effect and the effect of the non-Faraday rotation of the photon echo (PE) polarization plane are compared.

Highlights

When the quantum system is excited by pulses with a duration much shorter than the relaxation times of the resonant medium polarized pseudoelectric dipoles are produced on all particles
The process of dephasing of these dipoles occurs at different phase velocities for the upper and lower components of the hyperfine structure of the excited level, which is split due to the Zeeman effect
The resulting phase velocity difference, which leads to the rotation of the polarization plane of the echo signal, increases with increasing magnetic field strength and the time of dephasing of the dipoles, given by the value of the time intervals

Summary

Introduction

When the quantum system is excited by pulses with a duration much shorter than the relaxation times of the resonant medium polarized pseudoelectric dipoles are produced on all particles. The process of dephasing (phasing) of these dipoles occurs at different phase velocities for the upper (dextrorotatory) and lower (left-handed) components of the hyperfine structure of the excited level, which is split due to the Zeeman effect.

Results

Conclusion