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dc.contributor.authorMolina-Terriza, G.-
dc.contributor.authorTorres, J. P.-
dc.contributor.authorTorner, Lluis-
dc.contributor.authorSoto Crespo, J. M.-
dc.identifierdoi: 10.1016/S0030-4018(98)00512-4-
dc.identifierissn: 0030-4018-
dc.identifier.citationOptics Communications 158: 170-180 (1998)-
dc.description.abstractWe address the existence and instability of bright vortex solitary waves in quadratic non-linear media under conditions for Type II second-harmonic generation and study in detail the effects introduced by the presence of power imbalancing at the fundamental frequency. We find the families of solitary-wave solutions with different combinations of topological charges of the nested vortices and show their spontaneous azimuthal instability. The growth rates of the azimuthal perturbations are calculated as a function of the imbalancing. Experimental consequences are stressed and discussed. © 1998 Elsevier Science B.V. All rights reserved.-
dc.description.sponsorshipThis work has been supported by the Spanish Government under contract PB95-0768. The work of JMSC was supported by the Comunidad de Madrid under Contract 06Tr039r96 and by the CICyT under Contract TIC95-0563-03. GMT acknowledges support by the CIRIT of the Generalitat de Catalunya. The numerical work has been carried out at Centre de Computacio i Comunicacions de Catalunya.-
dc.titleImpact of imbalancing in the self-splitting of beams with nested vortices into solitons in quadratic non-linear crystals-
dc.description.versionPeer Reviewed-
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