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Continuous wave observation of massive polariton redistribution by stimulated scattering in semiconductor microcavities

Stevenson, R.M., Astratov, V.N., Skolnick, M.S., Whittaker, D.M., Emam-Ismail, M., Tartakovskii, A.I., Savvidis, P.G., Baumberg, J.J. and Roberts, J.S. (2000) Continuous wave observation of massive polariton redistribution by stimulated scattering in semiconductor microcavities Physical Review Letters, 85, (17), pp. 3680-3683. (doi:10.1103/PhysRevLett.85.3680).

Record type: Article

Abstract

A massive redistribution of the polariton occupancy to two specific wave vectors, zero and 3.9 x 10^4 cm-1, is observed under conditions of continuous wave excitation of a semiconductor microcavity. The “condensation” of the polaritons to the two specific states arises from stimulated scattering at final state occupancies of order unity. The stimulation phenomena, arising due to the bosonic character of the polariton quasiparticles, occur for conditions of resonant excitation of the lower polariton branch. High energy nonresonant excitation, as in most previous work, instead leads to conventional lasing in the vertical cavity structure.

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Published date: October 2000
Organisations: Nanoelectronics and Nanotechnology

Identifiers

Local EPrints ID: 256713
URI: http://eprints.soton.ac.uk/id/eprint/256713
ISSN: 1079-7114
PURE UUID: 80fc1a5f-1a49-4b0e-a4b1-19060833c39d

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Date deposited: 04 Aug 2002
Last modified: 18 Jul 2017 09:44

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Contributors

Author: R.M. Stevenson
Author: V.N. Astratov
Author: M.S. Skolnick
Author: D.M. Whittaker
Author: M. Emam-Ismail
Author: A.I. Tartakovskii
Author: P.G. Savvidis
Author: J.J. Baumberg
Author: J.S. Roberts

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