Analysis of the character of radiation transfer in a disordered three-dimensional ensemble of point scatterers in a waveguide

Пань Ичжэ

Published Jan 1, 2025• 0 citations

Abstract

The subject of the graduate qualification work is «Analysis of the character of radiation transfer in a disordered three-dimensional ensemble of point scatterers in a waveguide». Object of study is waveguide. The aim is exploring the transmission properties of photons between atoms in waveguide. The following tasks were solved: 1. Calculation of the Green matrix for an ensemble of point-like stationary atoms in a waveguide; 2. Analysis of the nature of dipole-dipole interaction between two atoms; 3. Calculation of the dynamics of cooperative spontaneous decay of excited states of atoms in a waveguide; 4. Transition to the regime of stationary excitation of an atomic ensemble. Calculation of stationary amplitudes of singly excited atomic states; 5. Calculation and analysis of the dependence of the transmittance coefficient in the stationary regime on the size of the atomic medium in the waveguide. As a result of the study, we show how changing the size of messy waveguides controls how atoms emit light. These discoveries help us build better light-based computers and sensors. MATLAB is used to calculate and simulate the mathematical model of interatomic radiation transmission in waveguide.

DOI: 10.18720/spbpu/3/2025/vr/vr25-4778

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