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Article Dans Une Revue Physical Review A : Atomic, molecular, and optical physics [1990-2015] Année : 2011

Spatiotemporal vortex solitons in hexagonal arrays of waveguides

Résumé

By means of a systematic numerical analysis, we demonstrate that hexagonal lattices of parallel linearly coupled waveguides, with the intrinsic cubic self-focusing nonlinearity, give rise to three species of stable semidiscrete complexes (which are continuous in the longitudinal direction) with embedded vorticity S: triangular modes with S=1, hexagonal ones with S=2, both centered around an empty central core, and compact triangles with S=1, which do not not include the empty site. Collisions between stable triangular vortices are studied too. These waveguiding lattices can be realized in optics and Bose-Einstein condensate.

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hal-03187681 , version 1 (01-04-2021)

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Hervé Leblond, Boris Malomed, Dumitru Mihalache. Spatiotemporal vortex solitons in hexagonal arrays of waveguides. Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2011, 83 (6), pp.063825. ⟨10.1103/PhysRevA.83.063825⟩. ⟨hal-03187681⟩

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