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), 3680-3683.

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Description/Abstract

A massive redistribution of the polariton occupancy to two specific wave vectors, zero and 3.9 3 104 cm21, 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.

Item Type: Article
Related URLs:
Divisions: Faculty of Physical Sciences and Engineering > Electronics and Computer Science > NANO
ePrint ID: 256713
Date Deposited: 04 Aug 2002
Last Modified: 27 Mar 2014 19:58
Publisher: The American Physical Society
Further Information:Google Scholar
ISI Citation Count:287
URI: http://eprints.soton.ac.uk/id/eprint/256713

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