Open AccessРаспространение поверхностных волн вдоль границы фоторефрактивного кристалла с нелинейным дефокусирующим покрытием
Author(s) -
С.Е. Савотченко
Publication year - 2020
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2020.07.49480.660
Subject(s) - nonlinear system , optics , surface (topology) , surface wave , field (mathematics) , crystal (programming language) , waveguide , diffusion , materials science , physics , mathematics , geometry , quantum mechanics , computer science , pure mathematics , programming language
A composite waveguide structure, which is a crystal with a diffusion mechanism for the formation of a nonlinear photorefractive response, the surface of which is coated with a non-linear Kerr defocusing type, is considered. It is shown that there exist TM polarized nonlinear surface waves of two types, which differ in the range of existence and the profile of field decay. The propagation modes of nonlinear surface waves are determined in which the field intensity can be maximum or minimum near the surface or at the boundary of the coated crystal.