Dissipative surface solitons in periodic structures
Abstract
We report dissipative surface solitons forming at the interface between a semi-infinite lattice and a homogeneous Kerr medium. The solitons exist due to balance between amplification in the near-surface lattice channel and two-photon absorption. The stable dissipative surface solitons exist in both focusing and defocusing media, when propagation constants of corresponding states fall into a total semi-infinite and or into one of total finite gaps of the spectrum (i.e. in a domain where propagation of linear waves is inhibited for the both media). In a general situation, the surface solitons form when amplification coefficient exceeds threshold value. When a soliton is formed in a total finite gap there exists also the upper limit for the linear gain.
Cite
@article{arxiv.1007.3602,
title = {Dissipative surface solitons in periodic structures},
author = {Yaroslav V. Kartashov and Vladimir V. Konotop and Victor A. Vysloukh},
journal= {arXiv preprint arXiv:1007.3602},
year = {2015}
}
Comments
5 pages, 3 figures, to appear in Europhysics Letters