Two-dimensional solitons at interfaces between binary superlattices and homogeneous lattices
Optics
2015-05-14 v1 Pattern Formation and Solitons
Abstract
We report on the experimental observation of two-dimensional surface solitons residing at the interface between a homogeneous square lattice and a superlattice that consists of alternating "deep" and "shallow" waveguides. By exciting single waveguides in the first row of the superlattice, we show that solitons centered on deep sites require much lower powers than their respective counterparts centered on shallow sites. Despite the fact that the average refractive index of the superlattice waveguides is equal to the refractive index of the homogeneous lattice, the interface results in clearly asymmetric output patterns.
Keywords
Cite
@article{arxiv.0911.4029,
title = {Two-dimensional solitons at interfaces between binary superlattices and homogeneous lattices},
author = {M. Heinrich and Y. V. Kartashov and L. P. R. Ramirez and A. Szameit and F. Dreisow and R. Keil and S. Nolte and A. Tunnermann and V. A. Vysloukh and L. Torner},
journal= {arXiv preprint arXiv:0911.4029},
year = {2015}
}
Comments
16 pages, 5 figures, to appear in Physical Review A