Initial relaxation of photoexcited carriers in GaAs and GaAs quantum wells under subpicosecond excitation
β Scribed by Benoit Deveaud; Jagdeep Shah; T.C. Damen; A.C. Gossard; P. Lugli
- Book ID
- 107856953
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 207 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0038-1101
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π SIMILAR VOLUMES
We present the results of an investigation of the spin relaxation dynamics of electrons, holes and excitons in GaAs quantum wells by means of subpicosecond spectroscopy of the photoluminescence polarization. The band to band luminescence was studied in n and p modulation-doped quantum wells. We show
We report on the effect of photogenerated free carriers on the spectral diffusion and on the LO-phonon Raman scattering of resonantly excited excitons. This is observed by an exciton population redistribution between localized states and by a decrease in the Raman scattering intensity under an extre