Temperature dependence of the polariton linewidth in a GaAs quantum well microcavity

Borri, Paola ORCID: https://orcid.org/0000-0002-7873-3314, Jensen, J. R., Langbein, Wolfgang Werner ORCID: https://orcid.org/0000-0001-9786-1023 and Hvam, J. M. 2000. Temperature dependence of the polariton linewidth in a GaAs quantum well microcavity. Physica Status Solidi (b) 221 (1) , pp. 143-146. 10.1002/1521-3951(200009)221:1<143::AID-PSSB143>3.0.CO;2-5

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Abstract

The temperature dependent linewidths of the polariton resonances in a GaAs/AlGaAs single quantum well microcavity are measured. Due to the dominant homogeneous broadening of the investigated resonances, a direct linewidth analysis of the reflectivity spectra allows us to investigate the role of scattering mechanisms in the lower polariton branch compared to the middle and upper polaritons. We find that the lower polariton linewidth is smaller than the middle and upper polariton linewidths at all investigated temperatures from 11 to 100 K, in agreement with expectations in literature.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy Biosciences
Subjects:	Q Science > QC Physics
Publisher:	Wiley-Blackwell
ISSN:	0370-1972
Last Modified:	25 Oct 2022 09:47
URI:	https://orca.cardiff.ac.uk/id/eprint/60033

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