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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 37, Iss. 21 — Nov. 1, 2012
  • pp: 4455–4457

Anderson localization of light in PT-symmetric optical lattices

Dragana M. Jović, Cornelia Denz, and Milivoj R. Belić  »View Author Affiliations


Optics Letters, Vol. 37, Issue 21, pp. 4455-4457 (2012)
http://dx.doi.org/10.1364/OL.37.004455


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Abstract

Anderson localization (AL) of light is investigated numerically in a disordered parity-time (PT)-symmetric potential, in the form of an optical lattice. The lattice is recorded in a nonlinear medium with Kerr nonlinearity. We demonstrate enhancement of light localization in a PT-symmetric lattice, as compared to the localization in the corresponding real lattice. The effect of strength of the gain-loss component in the PT lattice on various regimes of AL is also discussed. It is found that the localization exists and is further enhanced above the threshold strength of the imaginary part of the potential. The influence of nonlinearity and disorder level on the transverse localization of light in such a complex-valued potential is addressed.

© 2012 Optical Society of America

OCIS Codes
(190.5330) Nonlinear optics : Photorefractive optics
(190.6135) Nonlinear optics : Spatial solitons

ToC Category:
Nonlinear Optics

History
Original Manuscript: April 23, 2012
Revised Manuscript: August 30, 2012
Manuscript Accepted: September 18, 2012
Published: October 23, 2012

Citation
Dragana M. Jović, Cornelia Denz, and Milivoj R. Belić, "Anderson localization of light in PT-symmetric optical lattices," Opt. Lett. 37, 4455-4457 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-21-4455


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