Abstract
The spectral autocorrelation for a set of over 400 near-field photoluminescence spectra of a narrow quantum well has been evaluated. It is compared with a microscopic model of an exciton in a disorder potential. The analysis provides strong evidence for quantum mechanical level repulsion and allows a quantitative estimate of the microscopic disorder features. The concept of participation ratio is invoked to quantify the exciton center-of-mass localization lengths. These turn out to be broadly distributed and increase rapidly with energy.
| Original language | English |
|---|---|
| Pages (from-to) | 625-629 |
| Number of pages | 5 |
| Journal | physica status solidi (a) |
| Volume | 190 |
| Issue number | 3 |
| DOIs | |
| State | Published - Apr 2002 |
| Event | 7th International Conference on Optics and Excitons in Confined Systems (OECS7) - Montpellier, France Duration: Sep 3 2001 → Sep 7 2001 |
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