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Multicolor vortex solitons in two-dimensional photonic lattices

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arxiv nlin/0412021 v2 pith:ZAORIO5L submitted 2004-12-07 nlin.PS nlin.SI

Multicolor vortex solitons in two-dimensional photonic lattices

Zhiyong Xu , Yaroslav V. Kartashov , Lucian-Cornel Crasovan , Dumitru Mihalache , Lluis Torner This is my paper
classification nlin.PS nlin.SI
keywords solitonslatticedomainexistencelatticesmulticolorvortexalgebra
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We report on the existence and stability of multicolor lattice vortex solitons constituted by coupled fundamental frequency and second-harmonic waves in optical lattices in quadratic nonlinear media. It is shown that the solitons are stable almost in the entire domain of their existence, and that the instability domain decreases with the increase of the lattice depth. We also show the generation of the solitons, and the feasibility of the concept of lattice soliton algebra.

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