Reflective properties of active layered media at second optical harmonic generation

I. G. Zakharova; Захарова И. Г.; Т. М. Lysak; Лысак Т. М.; A. A. Kalinovich; Калинович А. А.; D. A. Chaykovskii; Чайковский Д. А.

doi:10.31857/S0367676523702940

Reflective properties of active layered media at second optical harmonic generation

Authors: Zakharova I.G.¹^,2, Lysak Т.М.¹^,2, Kalinovich A.A.¹, Chaykovskii D.A.²
Affiliations:
1. Lomonosov Moscow State University
2. MSU-BIT University
Issue: Vol 87, No 12 (2023)
Pages: 1707-1712
Section: Articles
URL: https://jdigitaldiagnostics.com/0367-6765/article/view/654527
DOI: https://doi.org/10.31857/S0367676523702940
EDN: https://elibrary.ru/QUJWJM
ID: 654527

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Abstract

We studied the reflective properties of an active periodic medium with quadratic nonlinearity using numerical modeling based on the description of the generation of the second optical harmonic in the quasi-optical approximation. The model under consideration appears to be a system of four coupled equations for slowly varying amplitudes of forward and backward waves. Based on numerical simulation, the influence of the asymmetric Bragg coupling of counterpropagating waves at the fundamental frequency on the absorbing/generating and reflecting properties of the active medium is analyzed.

References

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