Weak localization of light in a disordered microcavity.
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.
Gurioli
M
M
Dipartimento di Fisica, Università di Firenze, I-50019 Sesto-Fiorentino, Florence, Italy. gurioli@lens.unifi.it
Bogani
F
F
Cavigli
L
L
Gibbs
H
H
Khitrova
G
G
Wiersma
D S
DS