Collision broadening of two-dimensional excitons in a GaAs single quantum well
β Scribed by Honold, A.; Schultheis, L.; Kuhl, J.; Tu, C. W.
- Book ID
- 121648419
- Publisher
- The American Physical Society
- Year
- 1989
- Tongue
- English
- Weight
- 186 KB
- Volume
- 40
- Category
- Article
- ISSN
- 1098-0121
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π SIMILAR VOLUMES
%e report optical dephasing of two-dimensional excitons in GaAs-A1"Gai-, As single quantum wells by means of time-resolved degenerate-four-wave mixing and transmission experiments in the temperature range below 80 K. The observed absorption linewidths correspond directly to the ex- citonie phase coh
We report the first measurements of the interaction of non-equilibrium phonons with twodimensional exciton gases (2DExGs). The rise in the effective temperature of the 2DExG produced by the phonons depends on the width of the quantum well and the exciton sheet density and hence on the ratio 5 -l (ex