Time-resolved vacuum Rabi oscillations in a semiconductor quantum microcavity
- 15 November 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 50 (19), 14663-14666
- https://doi.org/10.1103/physrevb.50.14663
Abstract
We have used femtosecond optical spectroscopy to observe directly the vacuum Rabi oscillations associated with the coupled exciton-photon mode splitting in a semiconductor quantum microcavity. When the microcavity is impulsively excited by a coherent short optical pulse, the time-resolved emission from the cavity shows beats corresponding to the oscillation between cavity and exciton modes, with a decay corresponding to approximately twice the cavity lifetime. Interferometric pump-probe measurements clearly show the coherent evolution of the cavity polarization.Keywords
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