Explanation of photon correlations in the far-off-resonance optical emission from a quantum-dot–cavity system

Winger, M. et al. (2009) Explanation of photon correlations in the far-off-resonance optical emission from a quantum-dot–cavity system. Physical Review Letters, 103(20), 207403. (doi: 10.1103/PhysRevLett.103.207403)

Full text not currently available from Enlighten.

Abstract

In a coupled quantum-dot–nanocavity system, the photoluminescence from an off-resonance cavity mode exhibits strong quantum correlations with the quantum-dot transitions, even though its autocorrelation function is classical. Using new pump-power dependent photon-correlation measurements, we demonstrate that this seemingly contradictory observation that has so far defied an explanation stems from cascaded cavity photon emission in transitions between excited multiexciton states. The mesoscopic nature of quantum-dot confinement ensures the presence of a quasicontinuum of excitonic transitions, part of which overlaps with the cavity resonance.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Badolato, Professor Antonio
Authors: Winger, M., Volz, T., Tarel, G., Portolan, S., Badolato, A., Hennessy, K. J., Hu, E. L., Beveratos, A., Finley, J., Savona, V., and Imamoğlu, A.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Physical Review Letters
Publisher:American Physical Society
ISSN:0031-9007
ISSN (Online):1079-7114
Published Online:12 November 2009

University Staff: Request a correction | Enlighten Editors: Update this record