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

R. Rapaport; A. Qarry; G. Ramon; E. Cohen; A. Ron; L. N. Pfeiffer

doi:10.1016/S0038-1098(01)00404-5

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

R. Rapaport^*
, A. Qarry
, G. Ramon
, E. Cohen
, A. Ron
, L. N. Pfeiffer

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

We report on an experimental study of the microcavity polariton linewidth in an AlAs/AlGaAs microcavity containing GaAs quantum wells (QW) in which a variable density electron gas is photogenerated. The linewidth of the lowest polariton branch shows a clear suppression while that of the other branches show enhancement at narrow detuning energy ranges. A transformation is observed from a strong to weak exciton-cavity mode coupling at a very low photoexcitation intensity.

Original language	English
Pages (from-to)	387-391
Number of pages	5
Journal	Solid State Communications
Volume	120
Issue number	9-10
DOIs	https://doi.org/10.1016/S0038-1098(01)00404-5
State	Published - 2 Nov 2001
Externally published	Yes

Bibliographical note

Funding Information:
The work at the Technion was done at the Barbara and Norman Seiden Center for Advanced Opto-Electronics Research. It was supported by the United States–Israel Binational Science Foundation (BSF), Jerusalem, Israel.

Keywords

A. Quantum wells
A. Semiconductors
D. Optical properties
E. Light absorption and reflection

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10.1016/S0038-1098(01)00404-5

Cite this

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

abstract = "We report on an experimental study of the microcavity polariton linewidth in an AlAs/AlGaAs microcavity containing GaAs quantum wells (QW) in which a variable density electron gas is photogenerated. The linewidth of the lowest polariton branch shows a clear suppression while that of the other branches show enhancement at narrow detuning energy ranges. A transformation is observed from a strong to weak exciton-cavity mode coupling at a very low photoexcitation intensity.",

keywords = "A. Quantum wells, A. Semiconductors, D. Optical properties, E. Light absorption and reflection",

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note = "Funding Information: The work at the Technion was done at the Barbara and Norman Seiden Center for Advanced Opto-Electronics Research. It was supported by the United States–Israel Binational Science Foundation (BSF), Jerusalem, Israel.",

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doi = "10.1016/S0038-1098(01)00404-5",

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AU - Ramon, G.

AU - Cohen, E.

AU - Ron, A.

AU - Pfeiffer, L. N.

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N2 - We report on an experimental study of the microcavity polariton linewidth in an AlAs/AlGaAs microcavity containing GaAs quantum wells (QW) in which a variable density electron gas is photogenerated. The linewidth of the lowest polariton branch shows a clear suppression while that of the other branches show enhancement at narrow detuning energy ranges. A transformation is observed from a strong to weak exciton-cavity mode coupling at a very low photoexcitation intensity.

AB - We report on an experimental study of the microcavity polariton linewidth in an AlAs/AlGaAs microcavity containing GaAs quantum wells (QW) in which a variable density electron gas is photogenerated. The linewidth of the lowest polariton branch shows a clear suppression while that of the other branches show enhancement at narrow detuning energy ranges. A transformation is observed from a strong to weak exciton-cavity mode coupling at a very low photoexcitation intensity.

KW - A. Quantum wells

KW - A. Semiconductors

KW - D. Optical properties

KW - E. Light absorption and reflection

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JO - Solid State Communications

JF - Solid State Communications

IS - 9-10

ER -

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

Abstract

Bibliographical note

Keywords

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