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Title:
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Twin-vortex solitons in nonlocal nonlinear media
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Author:
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Fangwei, Ye; Kartashov, Yaroslav V.; Hu, Bambi; Torner Sabata, Lluís
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. FOTONICA - Grup de Recerca de Fotònica |
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Abstract:
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We consider soliton formation in thermal nonlinear media bounded by rectangular cross sections and uncover what we believe to be a new class of nonlinear stationary topological state. Specifically, we find that stationary higher-order vortex states in standard shapes do not exist, but rather they take the form of multiple spatially separated single-charge singularities nested in an elliptical beam. Double-charge states are found to be remarkably robust despite their shape asymmetry and phase-singularity splitting. States with higher topological charges are found to be unstable. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica
-Photonics
-Optical communications
-Fotònica
-Comunicacions òptiques |
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Rights:
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Document type:
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Article - Published version
Article |
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