Dynamics of localized and nonlocalized optical vortex solitons in cubic-quintic nonlinear media - art. no. 057601

Authors
Berezhiani, VI Skarka, V Aleksic, NB
Citation
Vi. Berezhiani et al., Dynamics of localized and nonlocalized optical vortex solitons in cubic-quintic nonlinear media - art. no. 057601, PHYS REV E, 6405(5), 2001, pp. 7601
Citations number
18
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW E
ISSN journal
1063651X → ACNP
Volume
6405
Issue
5
Year of publication
2001
Part
2
Database
ISI
SICI code
1063-651X(200111)6405:5<7601:DOLANO>2.0.ZU;2-7
Abstract
The nonlinear dynamics of laser beams carrying phase singularity in media w ith cubic-quintic nonlinearity changing from self-focusing to self-defocusi ng is examined. A novel kind of stable nonlocalized optical vortices appear s in such media as well as localized vortex solitons. Linear stability anal ysis and numerical simulations show the stability of localized vortices onl y in the defocusing region.