Ultralong-range radiative excitation transfer between quantum dots in a planar microcavity

Details Ultralong-range radiative excitation transfer between quantum dots in a planar microcavity Ultralong-range radiative excitation transfer between quantum dots in a planar microcavity

2007-08-14

arxiv.org/abs/0708.1920v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1002/pssb.200777623

We study the system of two quantum dots lying on the central plane of a planar semiconductor microcavity. By solving the full Maxwell problem, we demonstrate that the rate of resonant excitation transfer between the two dots decays as $d^{-1/2}$ as a function of the distance $d$ at long distance. This very long-range mechanism is due to the leaky and guided modes of the microcavity, which act as effective radiative transfer channels. At short distance, the $d^{-3}$ dependence of the F\"orster mechanism, induced by the electrostatic dipole-dipole interaction, is recovered.

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