2010/09/02 by Yaroslav V. Kartashov, Vladimir V. Konotop, Victor A. Vysloukh +1
Physics and Astronomy · #physics.optics #nlin.PS
paper · pdf · doi:10.1364/ol.35.001638
published as Optics Letters 35, 1638 (2010) · 4 pages, 3 figures
arxiv created 2010/09/02 · arxiv updated 2015/05/19
We show that periodic optical lattices imprinted in cubic nonlinear media with strong two-photon absorption and localized linear gain landscapes support stable dissipative defect modes in both focusing and defocusing media. Their shapes and transverse extent are determined by the propagation constant that belongs to a gap of the lattice spectrum which, in turn, is determined by the relation between gain and losses. One-hump and two-hump dissipative defect modes are obtained.