| Numéro |
Le Journal de Physique IV
Volume 03, Numéro C5, Octobre 1993
Third International Conference on Optics of Excitons in Confined
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|---|---|---|
| Page(s) | C5-191 - C5-194 | |
| DOI | https://doi.org/10.1051/jp4:1993536 | |
Third International Conference on Optics of Excitons in Confined
Le Journal de Physique IV 03 (1993) C5-191-C5-194
DOI: 10.1051/jp4:1993536
1 Instituto de Física "Gleb Wataghin", DFESCM, UNICAMP, 13086 Campinas (SP), Brazil
2 Walter Schottky Institut, TU-München, 8046 Garching, Germany
© EDP Sciences 1993
Le Journal de Physique IV 03 (1993) C5-191-C5-194
DOI: 10.1051/jp4:1993536
Fano resonances in quasi-2D excitons
J.A. BRUM1 and D. OBERLI21 Instituto de Física "Gleb Wataghin", DFESCM, UNICAMP, 13086 Campinas (SP), Brazil
2 Walter Schottky Institut, TU-München, 8046 Garching, Germany
Abstract
We study the formation of Fano resonances in excitonic states in quantum wells. The quasi-2D excitons are modeled by an effective 2D Coulomb interaction. In this approach, uncoupled excitons originate from different pairs of subbands. The 3D character of the Coulomb attraction couples the excitons having the same in-plane symmetry. A typical Fano resonance is formed in the absorption spectra and is characterized by a broadening of the bound exciton peak and a dip in the continuum background.
© EDP Sciences 1993