Peer-Reviewed Journal Details
Mandatory Fields
Malko, A. and Baier, M. H. and Karlsson, K. F. and Pelucchi, E. and Oberli, D. Y. and Kapon, E.
Applied Physics Letters
Optimization of the efficiency of single-photon sources based on quantum dots under optical excitation
Optional Fields
We demonstrate efficient, regulated single-photon operation from site-controlled InGaAs quantum dots (QDs) grown on a prepatterned substrate. Under nonresonant optical excitation, carriers trapped at structural or compositional defects of the adjacent nanostructures led to a degradation of the single-photon statistics from a QD. When the QD was excited quasiresonantly, single photons were emitted and a nearly complete suppression of multiphoton emission was achieved, making these QDs promising candidates for effective solid-state single-photon sources. (c) 2006 American Institute of Physics.
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