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Exciton-acoustic-phonon linewidths in GaAs bulk and quantum wells

✍ Scribed by Rudin, S.; Reinecke, T. L.


Book ID
126494466
Publisher
The American Physical Society
Year
2002
Tongue
English
Weight
66 KB
Volume
65
Category
Article
ISSN
1098-0121

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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