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Self-trapping and splitting of bright vector solitons under inhomogeneous defocusing nonlinearities
Kartashov, Yaroslav; Vysloukh, Victor A.; Torner Sabata, Lluís; Malomed, Boris A.
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. FOTONICA - Fotònica
We show that bimodal systems with a spatially nonuniform defocusing cubic nonlinearity, whose strength grows toward the periphery, can support stable two-component solitons. For a sufficiently strong cross-phase-modulation interaction, vector solitons with overlapping components become unstable, while stable families of solitons with spatially separated components emerge. Stable complexes with separated components may be built not only of fundamental solitons, but of multipoles, too.
Peer Reviewed
Àrees temàtiques de la UPC::Física::Física molecular
Nonlinear optics
Òptica no lineal
info:eu-repo/semantics/publishedVersion
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