Back to Search
Start Over
High spin polarization of optically-oriented trions in p-doped GaAs-AlGaAs quantum wells.
- Source :
-
AIP Conference Proceedings . 2007, Vol. 893 Issue 1, p439-440. 2p. 3 Graphs. - Publication Year :
- 2007
-
Abstract
- We performed cw-photoluminescence (PL) measurements on a 15 nm wide p-doped Al0.3Ga0.7As-GaAs-Al0.3Ga0.7As quantum well structure at low temperatures. By irradiating the sample with circularly polarized light and analyzing the degree of circular polarization of the PL signal, we found a significantly higher degree of spin polarization for charged excitons (trions) than for neutral excitons. Time-resolved pump-probe and Faraday-rotation experiments give an additional information concerning the exciton and trion resonant photoexcitation. © 2007 American Institute of Physics [ABSTRACT FROM AUTHOR]
- Subjects :
- *OPTICAL polarization
*QUANTUM wells
*OPTICS
*LOW temperatures
*EXCITON theory
Subjects
Details
- Language :
- English
- ISSN :
- 0094243X
- Volume :
- 893
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- AIP Conference Proceedings
- Publication Type :
- Conference
- Accession number :
- 24985484
- Full Text :
- https://doi.org/10.1063/1.2729954