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Spatially localized modes in two-dimensional chirped photonic lattices

Molina, Mario; Kartashov, Yaroslav; Torner, Lluis; Kivshar, Yuri


We numerically study both linear and nonlinear surface modes in semi-infinite chirped two-dimensional photonic lattices in the framework of an effective discrete nonlinear model. We demonstrate that the lattice chirp can dramatically change the conditions for the mode localization near the surface even in the linear limit, and we find surface modes, in linear lattices, and the families of discrete surface solitons, in nonlinear lattices. In a sharp contrast to one-dimensional discrete surface...[Show more]

CollectionsANU Research Publications
Date published: 2008
Type: Journal article
Source: Physical Review A: Atomic, Molecular and Optical Physics
DOI: 10.1103/PhysRevA.77.053813


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