Abstract
Time-integrated four-wave mixing experiments reveal strong influence of the cladding layer thickness d1, its refractive index and the reflectivity of the sample-air interface on the radiative dephasing time Trad of excitons in single quantum wells and multiple quantum well structures. A cladding layer thickness of λ/2 and λ/4 decreases and increases, respectively, Trad. Furthermore, we show that the superradiance is not limited to the heavy-hole exciton but can be observed even on excited and light-hole-exciton states as well as on correlated electron-hole-pair states. All findings agree fairly well with solutions of the semiconductor Maxwell-Bloch equations.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 101-106 |
| Number of pages | 6 |
| Journal | Physica Status Solidi (B) Basic Research |
| Volume | 221 |
| Issue number | 1 |
| DOIs | |
| State | Published - Sep 2000 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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Ammerlahn, D., Kuhl, J., Grote, B., Koch, S. W., Khitrova, G., Gibbs, H., Hey, R., & Ploog, K. H. (2000). Radiative coupling in single quantum wells and Bragg structures. Physica Status Solidi (B) Basic Research, 221(1), 101-106. https://doi.org/10.1002/1521-3951(200009)221:1<101::AID-PSSB101>3.0.CO;2-T