Femtosecond circular dichroism study of nonthermal carrier distributions in two- and zero-dimensional semiconductors
| Autor: | Daniel S. Chemla, Jason Blain Stark, Wayne H. Knox |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Circular dichroism
Materials science Magnetic circular dichroism business.industry General Physics and Astronomy Dichroism Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Molecular physics Condensed Matter::Materials Science Semiconductor Optics Femtosecond Charge carrier business Excitation Quantum well |
| Zdroj: | Physical Review Letters. 68:3080-3083 |
| ISSN: | 0031-9007 |
| DOI: | 10.1103/physrevlett.68.3080 |
| Popis: | We report the time-resolved circular dichroism induced by nonthermal distributions of carriers in GaAs quantum wells, separating completely, for the first time, the effects of screening and phase space filling. Thermalization of the initial excitation is strongly inhibited when carriers are laterally confined into zero dimensions by a large perpendicular magnetic field. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|