Radiative emission dynamics of quantum dots in a single cavity micropillar

Details Radiative emission dynamics of quantum dots in a single cavity micropillar Radiative emission dynamics of quantum dots in a single cavity micropillar

2006-05-30

arxiv.org/abs/cond-mat/0605728v2

Physics

Condensed Matter

Other Condensed Matter

9 pages, 6 figures, figure captions corrected

Scientific paper

10.1103/PhysRevB.74.045323

The light emission of self-assembled (In,Ga)As/GaAs quantum dots embedded in single GaAs-based micropillars has been studied by time-resolved photoluminescence spectroscopy. The altered spontaneous emission is found to be accompanied by a non-exponential decay of the photoluminescence where the decay rate strongly depends on the excitation intensity. A microscopic theory of the quantum dot photon emission is used to explain both, the non-exponential decay and its intensity dependence. Also the transition from spontaneous to stimulated emission is studied.

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