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Ultrafast Optical Spectroscopy of Large-Momentum Excitons in GaAs

Göger, G., Betz, M., Leitenstorfer, A., Bichler, Max, Wegscheider, Werner and Abstreiter, Gerhard (2000) Ultrafast Optical Spectroscopy of Large-Momentum Excitons in GaAs. Physical Review Letters 84 (25), pp. 5812-5815.

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Abstract

Highly energetic excitons with wave vectors much larger than that of an absorbed photon are excited in thin GaAs films. We observe propagation beats between three polariton modes up to 300 meV above the absorption edge employing femtosecond transmission spectroscopy. The dispersion relations of the coherent excitations are measured. Ultrafast exciton damping via scattering with nonequilibrium ...

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Item type:Article
Date:19 June 2000
Institutions:Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider
Identification Number:
ValueType
10.1103/PhysRevLett.84.5812DOI
Related URLs:
URLURL Type
http://link.aps.org/doi/10.1103/PhysRevLett.84.5812Publisher
Classification:
NotationType
71.35.Cc, 71.36.+c, 72.15.Lh, 78.47.+pPACS
Dewey Decimal Classification:500 Science > 530 Physics
Status:Published
Refereed:Unknown
Created at the University of Regensburg:Unknown
Item ID:11049
Owner only: item control page

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