Nonclassical radiation from a single self-assembled InAs quantum dot

C. Becher; A. Kiraz; P. Michler; A. Imamoğlu; W. V. Schoenfeld; P. M. Petroff; Lidong Zhang; E. Hu

doi:10.1103/PhysRevB.63.121312

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Nonclassical radiation from a single self-assembled InAs quantum dot

C. Becher, A. Kiraz, P. Michler, A. Imamoğlu, W. V. Schoenfeld, P. M. Petroff, Lidong Zhang, and E. Hu

Phys. Rev. B 63, 121312(R) – Published 13 March 2001

Abstract

We report the experimental observation of photon antibunching in fluorescence from a single self-assembled InAs quantum dot. The nonclassical photon statistics proves the atomlike nature of a single quantum dot at cryogenic temperatures. Pump-power-dependent measurements of the correlation function $g^{(2)} (τ)$ provide a method to determine the recombination time of the single exciton ground-state transition that does not require pulsed lasers. Using this method, we investigate the influence of photonic environment on a single quantum dot exciton lifetime.

Received 12 January 2001

DOI:https://doi.org/10.1103/PhysRevB.63.121312

Authors & Affiliations

C. Becher^1,*, A. Kiraz¹, P. Michler^1,†, A. Imamoğlu¹, W. V. Schoenfeld², P. M. Petroff², Lidong Zhang¹, and E. Hu¹

¹Department of Electrical and Computer Engineering, University of California, Santa Barbara, California 93106
²Materials Department, University of California, Santa Barbara, California 93106

^*Present address: Institut für Experimentalphysik, Universität Innsbruck, Technikerstraße 25, A-6020 Innsbruck, Austria; Electronic address: christoph.becher@uibk.nc.at
^†Present address: Institut für Festk’rperphysik, Universität Bremen, P.O. Box 330440, D-28334 Bremen, Germany.

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Vol. 63, Iss. 12 — 15 March 2001

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