Disorder-induced localization of light near edges of nonlinear photonic lattices
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We investigated the influence of edges and corners on the Anderson localization of light in disordered two-dimensional photonic lattices that are optically induced in nonlinear saturable photorefractive media. A systematic quantitative study of gradual transition from corner to bulk Anderson localization in truncated two-dimensional photonic lattices was carried out. We analyzed numerically the localization at several corners and edges of the square and triangular photonic lattices and compared them with the localization in bulk medium. We found that, for strong disorder, corners and edges effectively suppress Anderson localization, as compared to the bulk, but to a varying degree. © 2011 Elsevier B.V. All rights reserved.
author list (cited authors)
Jović, D., Belić, M. R., Kivshar, Y. S., & Denz, C.