title: Weak localization of light in a disordered microcavity.
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 > or =2, as required by reciprocity. The coherent backscattering cone is observed along a ring-shaped pattern due to confinement by the microcavity.
authors.affiliation: Dipartimento di Fisica, Università di Firenze, I-50019 Sesto-Fiorentino, Florence, Italy. gurioli@lens.unifi.it
authors.forename: M
authors.initials: M
authors.lastname: Gurioli
authors.forename: F
authors.initials: F
authors.lastname: Bogani
authors.forename: L
authors.initials: L
authors.lastname: Cavigli
authors.forename: H
authors.initials: H
authors.lastname: Gibbs
authors.forename: G
authors.initials: G
authors.lastname: Khitrova
authors.forename: D S
authors.initials: DS
authors.lastname: Wiersma