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 (US) |
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Pages (from-to) | 387-391 |
Number of pages | 5 |
Journal | Solid State Communications |
Volume | 120 |
Issue number | 9-10 |
DOIs | |
State | Published - Nov 2 2001 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Chemistry
- Condensed Matter Physics
- Materials Chemistry
Keywords
- A. Quantum wells
- A. Semiconductors
- D. Optical properties
- E. Light absorption and reflection