Exciton-photon strong-coupling regime for a single quantum dot embedded in a microcavity.
We report on the observation of the strong-coupling regime between the excitonic transition of a single GaAs quantum dot and a discrete optical mode of a microdisk microcavity. Photoluminescence is performed at various temperatures to tune the quantum dot exciton with respect to the optical mode. At resonance, we observe a clear anticrossing behavior, signature of the strong-coupling regime. The vacuum Rabi splitting amounts to 400 microeV and is twice as large as the individual linewidths.
Peter
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E
Laboratoire de Photonique et Nanostructures, LPN/CNRS, Route de Nozay, 91460 Marcoussis, France. emmanuelle.peter@lpn.cnrs.fr
Senellart
P
P
Martrou
D
D
Lemaître
A
A
Hours
J
J
Gérard
J M
JM
Bloch
J
J