Abstract
The collective spontaneous emission of a fully inverted inhomogeneously broadened ensemble of two-level systems coupled to a single-mode low- cavity is investigated numerically using Monte Carlo wave function technique. An intrinsically bi-exponential emission dynamics is found when the time scales of superradiance and inhomogeneous dephasing become comparable: a fast superradiant is followed by a slow subradiant decay. Experimental configurations using ensembles of quantum dots coupled to optical microcavities are proposed as possible candidates to observe the combined superradiant and subradiant energy relaxation.
- Received 3 August 2005
DOI:https://doi.org/10.1103/PhysRevLett.95.243602
©2005 American Physical Society