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Femtosecond Optical Response of Exciton-LO Phonon Quasiparticles in GaAs
Betz, M., Göger, G., Leitenstorfer, A., Zimmermann, R., Bichler, Max, Wegscheider, Werner and Abstreiter, Gerhard (2002) Femtosecond Optical Response of Exciton-LO Phonon Quasiparticles in GaAs. physica status solidi a 231 (1), pp. 181-186.Date of publication of this fulltext: 08 Feb 2010 13:20
Article
DOI to cite this document: 10.5283/epub.12741
Abstract
A weak Fano-type structure one LO phonon energy above the fundamental exciton in bulk GaAs is investigated via highly sensitive femtosecond transmission spectroscopy. It is identified as the response of an exciton-LO phonon quasiparticle. The low-density dephasing time of this excitation is directly determined to be 300 fs. Temperature and carrier density dependent measurements elucidate the properties of this resonance which is inaccessible in linear spectroscopy.
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| Item type | Article | ||||
| Journal or Publication Title | physica status solidi a | ||||
| Publisher: | John Wiley & Sons | ||||
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| Volume: | 231 | ||||
| Number of Issue or Book Chapter: | 1 | ||||
| Page Range: | pp. 181-186 | ||||
| Date | March 2002 | ||||
| Institutions | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider | ||||
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| Dewey Decimal Classification | 500 Science > 530 Physics | ||||
| Status | Published | ||||
| Refereed | Unknown | ||||
| Created at the University of Regensburg | Unknown | ||||
| Item ID | 12741 |
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