Article

Anderson cross-localization.

Institute of Applied Physics, Friedrich-Schiller-Universität Jena, Jena, Germany.
Optics Letters (impact factor: 3.4). 05/2012; 37(10):1715-7. pp.1715-7
Source: PubMed

ABSTRACT We report Anderson localization in two-dimensional optical waveguide arrays with disorder in waveguide separation introduced along one axis of the array, in an uncorrelated fashion for each waveguide row. We show that the anisotropic nature of such disorder induces a strong localization along both array axes. The degree of localization in the cross-axis remains weaker than that in the direction in which disorder is introduced. This effect is illustrated both theoretically and experimentally.

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Keywords

anisotropic nature
 
array axes
 
cross-axis
 
disorder induces
 
two-dimensional optical waveguide arrays
 
uncorrelated fashion
 
waveguide row
 
waveguide separation