Exciton formation in quantum wells

We have investigated the exciton spin dynamics in quantum wells. In non-resonant excitation conditions, the initial degree of circular polarization of the exciton luminescence is higher than the excitation light polarization. This demonstrates that excitons are formed from non-geminate electron-hole...

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Bibliographic Details
Published in:Solid state communications 1994, Vol.90 (4), p.237-240
Main Authors: Dareys, B., Marie, X., Amand, T., Baylac, B., Barrau, J., Razdobreev, I., Brousseau, M., Dunstan, D.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electron states
Exact sciences and technology
Excitons and related phenomena
Physics
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Summary:We have investigated the exciton spin dynamics in quantum wells. In non-resonant excitation conditions, the initial degree of circular polarization of the exciton luminescence is higher than the excitation light polarization. This demonstrates that excitons are formed from non-geminate electron-hole pairs.
ISSN:0038-1098
1879-2766
DOI:10.1016/0038-1098(94)90467-7