Exciton photon strong-coupling regime for a single quantum dot in a   microcavity
  We report on the observation of the strong coupling regime between a single GaAs quantum dot and a microdisk optical mode. Photoluminescence is performed at various temperatures to tune the quantum dot exciton with respect to the optical mode. At resonance, we observe an anticrossing, signature of the strong coupling regime with a well resolved doublet. The Vacuum Rabi splitting amounts to 400 &#956;eV and is twice as large as the individual linewidths. 
Emmanuelle Peter (LPN), Pascale Senellart (LPN), David Martrou (LPN),   Aristide Lemaitre (LPN), Jacqueline Bloch (LPN), Jul...