Loading...
research article
Optimization of the efficiency of single photon sources based on quantum dots under optical excitation
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.
Type
research article
Web of Science ID
WOS:000235553300024
Authors
Publication date
2006
Publisher
Published in
Volume
88
Article Number
81905
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
February 29, 2008
Use this identifier to reference this record