Single photon emission from individual GaAs quantum dots
- 7 April 2003
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 82 (14), 2206-2208
- https://doi.org/10.1063/1.1563050
Abstract
We report on photon correlation measurements on a single quantum dot formed at fluctuations of the interface of a GaAs/GaAlAs quantum well. We demonstrate that under pulsed nonresonant excitation, the quantum dot emits a single photon per pulse. This shows that after the photon emission, there is no refill of the quantum dot by the nearby two-dimensional reservoir of delocalized states. The possibility of delivering Fourier transform limited single photons makes this system a good candidate for exciton- and photon-based quantum information processing schemes.Keywords
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