Isotropic Nonlinear Medium Research Articles

OnCˇerenkov radiation of particles in nonlinear isotropic media

Investigation is made of “cubic” nonlinearity effect on the nature ofCˇerenkov radiation of particles. It had been shown that under certain conditions nonlinearity of medium initiates radiation in media, not subjected to the radiation in linear approximation.

Perturbation Theory of Nonlinear Electromagnetic Wave Propagation

A perturbation method, previously employed to treat nonlinear boundary-value problems involving partial differential equations, is used to study nonlinear electromagnetic wave propagation. The problems considered are I. electromagnetic wave propagation in a waveguide containing a nonlinear isotropic medium; II. electromagnetic oscillations in a cavity containing a nonlinear dispersive anisotropic medium; III. propagation and interaction of electromagnetic waves in a nonlinear dispersive anisotropic medium; IV. reflection of an electromagnetic wave from a nonlinear dispersive uniaxial medium. The method avoids secular terms, which arise in some perturbation treatments. The results show how the wave number, propagation velocity, and angle of refraction of a wave depend upon its amplitude.

Theory of light self-channeling in a nonlinear isotropic medium

Theory of light self-channeling in a nonlinear isotropic medium