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Stable counter-rotating vortex pairs in saturable media

Desyatnikov, Anton S; Mihalache, Dumitru; Mazilu, Dumitru; Malomed, Boris A; Lederer, Falk

Description

We resolve a controversial issue of the stability of composite vortex solitons in self-focusing saturable nonlinear media. Stable vortex solitons with hidden angular momentum, i.e., composed of counter-rotating beams with topological charges +1 and -1, are found, and their linear-stability region is identified. In contrast, the solitons with explicit vorticity are always unstable against splitting. The predicted linear stability of the hidden-vorticity solitons is achieved in the...[Show more]

dc.contributor.authorDesyatnikov, Anton S
dc.contributor.authorMihalache, Dumitru
dc.contributor.authorMazilu, Dumitru
dc.contributor.authorMalomed, Boris A
dc.contributor.authorLederer, Falk
dc.date.accessioned2015-12-07T22:53:18Z
dc.identifier.issn0375-9601
dc.identifier.urihttp://hdl.handle.net/1885/27798
dc.description.abstractWe resolve a controversial issue of the stability of composite vortex solitons in self-focusing saturable nonlinear media. Stable vortex solitons with hidden angular momentum, i.e., composed of counter-rotating beams with topological charges +1 and -1, are found, and their linear-stability region is identified. In contrast, the solitons with explicit vorticity are always unstable against splitting. The predicted linear stability of the hidden-vorticity solitons is achieved in the strong-saturation regime, when the soliton's total power exceeds a certain threshold. The dynamical stability is verified in direct simulations of nonlinear model.
dc.publisherElsevier
dc.sourcePhysics Letters A
dc.subjectKeywords: Optical angular momentum; Optical vortex; Phase dislocation; Spatial soliton
dc.titleStable counter-rotating vortex pairs in saturable media
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume364
dc.date.issued2007
local.identifier.absfor010501 - Algebraic Structures in Mathematical Physics
local.identifier.ariespublicationu9201385xPUB53
local.type.statusPublished Version
local.contributor.affiliationDesyatnikov, Anton S, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationMihalache, Dumitru, Horia Hulubei National Institute of Atomic Physics
local.contributor.affiliationMazilu, Dumitru, Horia Hulubei National Institute of Atomic Physics
local.contributor.affiliationMalomed, Boris A, Tel Aviv University
local.contributor.affiliationLederer, Falk, Friedrich Schiller University
local.description.embargo2037-12-31
local.bibliographicCitation.issue3-4
local.bibliographicCitation.startpage231
local.bibliographicCitation.lastpage234
local.identifier.doi10.1016/j.physleta.2006.11.090
dc.date.updated2015-12-07T12:39:23Z
local.identifier.scopusID2-s2.0-33947156169
CollectionsANU Research Publications

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