Dynamics of spherically symmetric vortex of laser radiation in a nonlinear medium

Autor:	V.V. Kabanov
Rok vydání:	2003
Předmět:	Electromagnetic field Physics Permittivity General Mathematics Applied Mathematics Isotropy General Physics and Astronomy Spherical harmonics Statistical and Nonlinear Physics Vortex Classical mechanics Nonlinear medium Vector spherical harmonics Soliton
Zdroj:	Chaos, Solitons & Fractals. 17:425-431
ISSN:	0960-0779
DOI:	10.1016/s0960-0779(02)00383-1
Popis:	The possibility of realization of a spherically symmetric vortex of the electromagnetic field in a homogeneous isotropic medium is analyzed. It was shown that the vortex could emerge by the interaction of the vector spherical harmonic with the nonlinear medium having a negative linear permittivity. As a result the nonlinear refractive index becomes the valid value in a small volume near the centre. The radial-gradient distribution of the nonlinear refractive index acts as a spherical microcavity induced in the nonlinear medium. Within this volume a set of undamped vector spherical harmonics forms the spherical symmetric structure of the electromagnetic field of a soliton type. This structural resonance has quite discrete energy values. Mechanisms and conditions of self-organization of the spherically symmetric vortex are discussed on a basis of nonlinear-optical and quantum-mechanical approaches. Dynamics and stability of the spherically symmetric vortex in the nonlinear medium are discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::689b57d0b9ffc6a77e4a60eeadb90163 https://doi.org/10.1016/s0960-0779(02)00383-1 Zobrazit plný text záznamu Full Text from ScienceDirect