Journal
PHYSICAL REVIEW LETTERS
Volume 86, Issue 14, Pages 3168-3171Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.86.3168
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Spontaneous emission of quantum dot systems in laterally structured microcavities that exhibit photon confinement in all three directions has been studied by time-resolved photoluminescence spectroscopy. For on-resonance conditions, we find that the dot emission rate is increased substantially over that of the unstructured planar cavity. For off-resonance conditions, we are able to suppress the emission rate by an order of magnitude by using cavities with metal coatings, which we attribute to the suppression of leaky optical modes in these structures.
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