Observation of two-dimensional lattice interface solitons
arXiv:0802.3196 · doi:10.1364/OL.33.000663
Abstract
We report on the experimental observation of two-dimensional solitons at the interface between square and hexagonal waveguide arrays. In addition to the different symmetry of the lattices, the influence of a varying refractive index modulation depth is investigated. Such variation strongly affects the properties of surface solitons residing at different sides of the interface.
14 pages, 5 figures, to appear in Optics Letters