Photon correlation spectroscopy of a single quantum dot

A. Kiraz; S. Fälth; C. Becher; B. Gayral; W. V. Schoenfeld; P. M. Petroff; Lidong Zhang; E. Hu; A. Imamoğlu

doi:10.1103/PhysRevB.65.161303

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Photon correlation spectroscopy of a single quantum dot

A. Kiraz, S. Fälth, C. Becher, B. Gayral, W. V. Schoenfeld, P. M. Petroff, Lidong Zhang, E. Hu, and A. Imamoğlu

Phys. Rev. B 65, 161303(R) – Published 28 March 2002

Abstract

We report photon correlation measurements that reveal unique signatures of biexciton and charged exciton emissions in a single self-assembled InAs quantum dot. Biexciton emission exhibits both bunching and antibunching under continuous-wave excitation and only antibunching under pulsed excitation. Cross correlation between biexciton and single-exciton emissions reveals highly asymmetric features due to cascaded emission. Under our excitation conditions, no polarization correlations between the exciton and biexciton emissions were observed.

Received 9 January 2002

DOI:https://doi.org/10.1103/PhysRevB.65.161303

Authors & Affiliations

A. Kiraz¹, S. Fälth¹, C. Becher^1,2, B. Gayral¹, W. V. Schoenfeld³, P. M. Petroff³, Lidong Zhang¹, E. Hu¹, and A. Imamoğlu^1,4

¹Department of Electrical and Computer Engineering, University of California, Santa Barbara, California 93106
²Institut für Experimentalphysik, Universität Innsbruck, A-6020 Innsbruck, Austria
³Materials Department, University of California, Santa Barbara, California 93106
⁴Department of Physics, University of California, Santa Barbara, California 93106

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Vol. 65, Iss. 16 — 15 April 2002

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Physical Review B

covering condensed matter and materials physics