Dynamics of the divergent dark and bright solitonic channels evolved from a dark solitonlike beam in a medium with competing third- and fifth-order nonlinearities

Authors
Citation
C. Wang, Dynamics of the divergent dark and bright solitonic channels evolved from a dark solitonlike beam in a medium with competing third- and fifth-order nonlinearities, J OPT SOC B, 18(9), 2001, pp. 1351-1355
Citations number
22
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
ISSN journal
0740-3224 → ACNP
Volume
18
Issue
9
Year of publication
2001
Pages
1351 - 1355
Database
ISI
SICI code
0740-3224(200109)18:9<1351:DOTDDA>2.0.ZU;2-V
Abstract
A theoretical study has been made of the dynamics of the divergent dark and bright solitonic channels that have evolved from a dark solitonlike beam i n a self-defocusing medium with measurable fifth-order focusing nonlinearit y. During perturbation the incident dark solitonlike beam with appropriate parameters is deformed and evolves into a dark solitonic channel, emitting additional radiation from which a bright companion channel is born. Global propagation becomes stable and falls into a pattern of the divergent dark a nd bright solitonic channels with desirable built-in mutual support by way of the background that typifies the counterbalance between diffraction of t he solitonic channels and the joint effect of the competing nonlinearities. At this stage the energy redistribution among the solitonic channels and t he background is retained up to a dynamic equilibrium, and the overall tran sverse momentum is conserved. (C) 2001 Optical Society of America.