Weak localization of light in a disordered microcavity

Year: 2005

Authors: Gurioli M., Bogani F., Cavigli L., Gibbs H., Khitrova G., Wiersma D.

Autors Affiliation: Dipartimento di Fisica, Universitá di Firenze, I-50019 Sesto-Fiorentino (FI), Italy; INFM-MATIS, European Laboratory for Non-linear Spectroscopy, Sesto Fiorentino (Florence), Italy; Dipartimento di Energetica, Universitá di Firenze, I-50134-Firenze (FI), Italy; Optical Sciences Center, University of Arizona, Tucson, AZ, United States

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.

Journal/Review: PHYSICAL REVIEW LETTERS

Volume: 94 (18)      Pages from: 183901-1  to: 183901-4

KeyWords: Backscattering; Coherent light; Light scattering; Semiconductor materials, Coherent enhancement; Ring-shaped pattern; Semiconductor microcavity; Static speckle; Light
DOI: 10.1103/PhysRevLett.94.183901

Citations: 48
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