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Delocalization enhancement induced by weak disorder and nonlinearity

: Naether, Uta; Rojas-Rojas, Santiago; Stützer, Simon; Heinrich, Matthias; Tünnermann, Andreas; Nolte, Stefan; Vicencio, Rodrigo A.; Szameit, Alexander

Fulltext ()

OSA technical digest. Online resource (2012), QM1E.4
Quantum Electronics and Laser Science Conference (QELS) <2012, San Jose/Calif.>
Conference Paper, Electronic Publication
Fraunhofer IOF ()

We show theoretically and experimentally for planar and square lattices, that during the initial diffrac- tive broadening of a narrow excitation, small amounts of disorder may enhance delocalization. This effect is amplified by nonlinear propagation.