2009/02/04 by Yaroslav V. Kartashov, Boris A. Malomed, Victor A. Vysloukh +1 · 2 citations
Physics and Astronomy · #physics.optics #nlin.PS
paper · pdf · doi:10.1364/ol.34.000770
published as Optics Letters 34, 770 (2009) · 12 pages, 3 figures, to appear in Optics Letters
arxiv created 2009/02/04 · arxiv updated 2009/12/01
We address the existence and stability of two-dimensional solitons in optical or matter-wave media, which are supported by purely nonlinear lattices in the form of a periodic array of cylinders with self-focusing nonlinearity, embedded into a linear material. We show that such lattices can stabilize two-dimensional solitons against collapse. We also found that stable multipoles and vortex solitons are also supported by the nonlinear lattices, provided that the nonlinearity exhibits saturation.