Influence of a medium's nonlinearity on Anderson localization of light in optically induced photonic lattices

Dragana M. Jovic; Cornelia Denz; Milivoj R. Belic

doi:10.1117/1.OE.51.8.088001

16 August 2012 Influence of a medium's nonlinearity on Anderson localization of light in optically induced photonic lattices

Dragana M. Jovic, Cornelia Denz, Milivoj R. Belic

Author Affiliations +

Optical Engineering, Vol. 51, Issue 8, 088001 (August 2012). https://doi.org/10.1117/1.OE.51.8.088001

Abstract

We studied numerically the Anderson localization of light in the two-dimensional square photonic lattice, optically induced in both linear and nonlinear dielectric media. We investigated the combined influence of nonlinearity and disorder on Anderson localization in bulk media, as well as when there is interface between the linear and nonlinear medium. In bulk, there exist strongly nonlinear regimes in which localization is less pronounced than in the linear regime. We found that in the defocusing nonlinear regime, the localization is always less pronounced than in the linear regime. We also studied surface-localized modes near the interface between linear and nonlinear dielectric media with an optically induced photonic lattice, and observed the threshold for their existence. We demonstrate suppression of the localization at the interface for lower disorder levels, compared with both pure linear and pure nonlinear media.

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Dragana M. Jovic, Cornelia Denz, and Milivoj R. Belic "Influence of a medium's nonlinearity on Anderson localization of light in optically induced photonic lattices," Optical Engineering 51(8), 088001 (16 August 2012). https://doi.org/10.1117/1.OE.51.8.088001

Published: 16 August 2012

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