Emission characteristics of quantum dots in planar microcavities

Details Emission characteristics of quantum dots in planar microcavities Emission characteristics of quantum dots in planar microcavities

2005-11-14

arxiv.org/abs/cond-mat/0511350v1

Phys. Rev. B 73, 205330 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevB.73.205330

The emission properties of single quantum dots in planar microcavities are studied experimentally and theoretically. Fivefold Enhanced spontaneous emission outside the microcavity is found for dots in resonance with the cavity mode, relative to detuned dots, while their radiative lifetime is only marginally decreased. Using high power excitation we obtain the in-plane cavity dispersion. Near field images of the emission show spatial distributions of several microns for resonant dots, which decrease in size with the detuning from resonance. These experimental findings are explained using a simple and intuitive model.

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