Wagner, Hans Peter and Tranitz, H. P. and Schuster, R. (1999) Formation and phase relaxation of negatively charged excitons in ZnSe single quantum wells. PHYSICAL REVIEW B, 60 (23). pp. 15542-15545. ISSN 1098-0121, 1550-235X
Full text not available from this repository. (Request a copy)Abstract
We investigate the formation, interaction, and dephasing of negatively charged excitons (trions) in ZnSe/Zn0.9Me0.1Se single quantum wells by polarization, intensity, and temperature dependent spectrally resolved transient four-wave mixing. The trion transition shows a binding energy of 2.8 meV and is discriminated from the biexciton by its polarization dependence. The coherent dynamics of the four-wave mixing response is in fair agreement with calculations based on extended optical Bloch equations. Temperature dependent measurements exhibit a significant enhancement of the exciton dephasing below 40 K due to the presence of trions and incoherent electrons which are optically excited from the GaAs substrate and captured by the quantum well. [S0163-1829(99)11347-X].
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 06 Dec 2022 09:31 |
| Last Modified: | 06 Dec 2022 09:31 |
| URI: | https://pred.uni-regensburg.de/id/eprint/48765 |
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