Dynamics of localized and nonlocalized optical vortex solitons in cubic-quintic nonlinear media

The nonlinear dynamics of laser beams carrying phase singularity in media with cubic-quintic nonlinearity changing from self-focusing to self-defocusing is examined. A novel kind of stable nonlocalized optical vortices appears in such media as well as localized vortex solitons. Linear stability anal...

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Veröffentlicht in:Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics Statistical physics, plasmas, fluids, and related interdisciplinary topics, 2001-11, Vol.64 (5 Pt 2), p.057601-057601, Article 057601
Hauptverfasser: Berezhiani, V I, Skarka, V, Aleksić, N B
Format: Artikel
Sprache:eng
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Zusammenfassung:The nonlinear dynamics of laser beams carrying phase singularity in media with cubic-quintic nonlinearity changing from self-focusing to self-defocusing is examined. A novel kind of stable nonlocalized optical vortices appears in such media as well as localized vortex solitons. Linear stability analysis and numerical simulations show the stability of localized vortices only in the defocusing region.
ISSN:1539-3755
1063-651X
1095-3787
DOI:10.1103/PhysRevE.64.057601