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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 1 — Jan. 14, 2013
  • pp: 927–934

Enhanced distribution of a wave-packet in lattices with disorder and nonlinearity

Uta Naether, Santiago Rojas-Rojas, Alejandro J. Martínez, Simon Stützer, Andreas Tünnermann, Stefan Nolte, Mario I. Molina, Rodrigo A. Vicencio, and Alexander Szameit  »View Author Affiliations


Optics Express, Vol. 21, Issue 1, pp. 927-934 (2013)
http://dx.doi.org/10.1364/OE.21.000927


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Abstract

We show, numerically and experimentally, that the presence of weak disorder results in an enhanced energy distribution of an initially localized wave-packet, in one- and two-dimensional finite lattices. The addition of a focusing nonlinearity facilitates the spreading effect even further by increasing the wave-packet effective size. We find a clear transition between the regions of enhanced spreading (weak disorder) and localization (strong disorder).

© 2013 OSA

OCIS Codes
(130.2790) Integrated optics : Guided waves
(190.0190) Nonlinear optics : Nonlinear optics
(070.7345) Fourier optics and signal processing : Wave propagation

ToC Category:
Nonlinear Optics

History
Original Manuscript: October 11, 2012
Revised Manuscript: November 27, 2012
Manuscript Accepted: November 28, 2012
Published: January 9, 2013

Citation
Uta Naether, Santiago Rojas-Rojas, Alejandro J. Martínez, Simon Stützer, Andreas Tünnermann, Stefan Nolte, Mario I. Molina, Rodrigo A. Vicencio, and Alexander Szameit, "Enhanced distribution of a wave-packet in lattices with disorder and nonlinearity," Opt. Express 21, 927-934 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-1-927


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