Free electron effects on the cavity polariton linewidth in an AlAs/AlGaAs microcavity containing a two-dimensional electron gas

Citation
R. Rapaport et al., Free electron effects on the cavity polariton linewidth in an AlAs/AlGaAs microcavity containing a two-dimensional electron gas, SOL ST COMM, 120(9-10), 2001, pp. 387-391
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SOLID STATE COMMUNICATIONS
ISSN journal
00381098 → ACNP
Volume
120
Issue
9-10
Year of publication
2001
Pages
387 - 391
Database
ISI
SICI code
0038-1098(2001)120:9-10<387:FEEOTC>2.0.ZU;2-D
Abstract
We report on an experimental Study of the microcavity polariton linewidth i n an AlAs/AlGaAs microcavity containing GaAs quantum wells (QW) in which a variable density electron gas is photogenerated. The linewidth of the lowes t polariton branch shows a clear suppression while that of the other branch es show enhancement at narrow detuning energy ranges. A transformation is o bserved from a strong to weak exciton-cavity, mode coupling at a very low p hotoexcitation intensity. (C) 2001 Published by Elsevier Science Ltd.