Weak Localization of Light in a Disordered Microcavity

M. Gurioli, F. Bogani, L. Cavigli, H. Gibbs, G. Khitrova, and D. S. Wiersma
Phys. Rev. Lett. 94, 183901 – Published 10 May 2005

Abstract

We report the observation of weak localization of light in a semiconductor microcavity. The intrinsic disorder in a microcavity leads to multiple scattering and hence to static speckle. We show that averaging over realizations of the disorder reveals a coherent backscattering cone that has a coherent enhancement factor 2, as required by reciprocity. The coherent backscattering cone is observed along a ring-shaped pattern due to confinement by the microcavity.

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  • Received 25 May 2004

DOI:https://doi.org/10.1103/PhysRevLett.94.183901

©2005 American Physical Society

Authors & Affiliations

M. Gurioli1,2,†, F. Bogani3, L. Cavigli2, H. Gibbs4, G. Khitrova4, and D. S. Wiersma2,‡

  • 1Dipartimento di Fisica, Universitá di Firenze, I-50019 Sesto-Fiorentino (FI), Italy
  • 2INFM-MATIS and European Laboratory for Non-linear Spectroscopy, Sesto Fiorentino (Florence), Italy*
  • 3Dipartimento di Energetica, Universitá di Firenze, I-50134-Firenze (FI), Italy
  • 4Optical Sciences Center, University of Arizona, Tucson, Arizona 85721, USA

  • *Electronic address: www.lens.unifi.it Electronic address: www.complexphotonics.org
  • Electronic address: gurioli@lens.unifi.it
  • Electronic address: wiersma@lens.unifi.it

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Issue

Vol. 94, Iss. 18 — 13 May 2005

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