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Relaxation bottleneck and its suppression in semiconductor microcavities

Tartakovskii, A.I., Emam-Ismail, M., Stevenson, R.M., Skolnick, M.S., Astratov, V.N., Whittaker, D.M., Baumberg, J.J. and Roberts, J.S. (2000) Relaxation bottleneck and its suppression in semiconductor microcavities. Physical Review B: Condensed Matter and Materials Physics, 62 (4). R2283-R2286. ISSN 1098-0121

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Abstract

A polariton relaxation bottleneck is observed in angle-resolved measurements of photoluminescence emission from a semiconductor microcavity. For low power laser excitation, low k polariton states are found to have a very small population relative to those at high k. The bottleneck is found to be strongly suppressed at higher powers in the regime of superlinear emission of the lower polariton states. Evidence for the important role of carrier-carrier scattering in suppression of the bottleneck is presented.

Item Type: Article
Copyright, Publisher and Additional Information: © 2000 The American Physical Society. Reproduced in accordance with the publisher’s self-archiving policy.
Academic Units: The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield)
The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield)
Depositing User: Repository Assistant
Date Deposited: 27 Jul 2006
Last Modified: 08 Feb 2013 16:49
Published Version: http://link.aps.org/abstract/PRB/v62/pR2283
Status: Published
Publisher: American Institute of Physics
Refereed: Yes
Identification Number: 10.1103/PhysRevB.62.R2283
URI: http://eprints.whiterose.ac.uk/id/eprint/1468

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