Coexistence of low threshold lasing and strong coupling in microcavities

Lagoudakis, P.G., Martin-Fernandez, M.D., Baumberg, J.J., Malpuech, G. and Kavokin, A. (2004) Coexistence of low threshold lasing and strong coupling in microcavities. Journal of Applied Physics, 95, (5), 2487-2489. (doi:10.1063/1.1643191).


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We report the coexistence of low threshold lasing and strong coupling in a high-quality semiconductor microcavity under near-resonant optical pumping. A sharp laser mode splits from the lower-polariton branch and approaches the bare cavity mode frequency as the pump power increases. The lasing is produced by low density localized exciton states, which are weakly coupled to the cavity mode. The appearance of this lasing mode distinguishes quantum-well excitons into those which are strongly or weakly coupled with the cavity mode.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1063/1.1643191
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Keywords: semiconductor microcavities lasing threshold
Subjects: Q Science > QC Physics
T Technology > T Technology (General)
Divisions : University Structure - Pre August 2011 > School of Physics and Astronomy
ePrint ID: 11159
Accepted Date and Publication Date:
1 March 2004Published
Date Deposited: 29 Oct 2004
Last Modified: 31 Mar 2016 11:22

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