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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Grover Swartzlander
  • Vol. 30, Iss. 6 — Jun. 1, 2013
  • pp: 1452–1461

Modal perspective on the transverse Anderson localization of light in disordered optical lattices

Salman Karbasi, Karl W. Koch, and Arash Mafi  »View Author Affiliations


JOSA B, Vol. 30, Issue 6, pp. 1452-1461 (2013)
http://dx.doi.org/10.1364/JOSAB.30.001452


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Abstract

We present a detailed analysis of the transverse Anderson localization of light in a one-dimensional disordered optical lattice in the language of transversely localized and longitudinally propagating eigenmodes. The modal analysis allows us to explore localization behavior of a disordered lattice waveguide independent of the properties of the external excitation. Various localization-related phenomena, such as the periodic revival of a propagating Anderson-localized beam, are easily explained in modal language. We characterize the localization strength by the average width of the guided modes and carry out a detailed analysis of localization behavior as a function of the optical and geometrical parameters of the disordered lattice. We also show that in order to obtain a minimum average mode width, the average width of the individual random sites in the disordered lattice must be larger than the wavelength of the light by approximately a factor of two or more, and the optimum site width for the maximum localization depends on the design parameters of the disordered lattice.

© 2013 Optical Society of America

OCIS Codes
(230.7400) Optical devices : Waveguides, slab
(290.4210) Scattering : Multiple scattering

ToC Category:
Scattering

History
Original Manuscript: January 23, 2013
Revised Manuscript: March 9, 2013
Manuscript Accepted: April 9, 2013
Published: May 6, 2013

Citation
Salman Karbasi, Karl W. Koch, and Arash Mafi, "Modal perspective on the transverse Anderson localization of light in disordered optical lattices," J. Opt. Soc. Am. B 30, 1452-1461 (2013)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-30-6-1452

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