Abstract
Results of a photoluminescence and electroluminescence study of vertically coupled In0.5Ga0.5As/GaAs quantum dot (QD) structures with an extended waveguide (1.24 μm thick) are presented. Spectra of spontaneous and stimulated near-infrared (λ ≃ 1 μ.m) emission as well as spectra of spontaneous mid-infrared (MIR) (λ ≃ 12 μm) emission are obtained under optical and electrical pumping. It is shown that the observed MIR emission is connected with intraband electron optical transitions in the QD structures.
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 447-449 |
| Seitenumfang | 3 |
| Fachzeitschrift | NANOTECHNOLOGY |
| Jahrgang | 12 |
| Ausgabenummer | 4 |
| DOIs | |
| Publikationsstatus | Veröffentlicht - Dez. 2001 |
| Extern publiziert | Ja |
| Veranstaltung | 9th International Symposium on Nanostructures: Physics and Technology - St. Petersburg, Russland Dauer: 18 Juni 2001 → 22 Juni 2001 |
ASJC Scopus Sachgebiete
- Bioengineering
- Allgemeine Chemie
- Allgemeine Materialwissenschaften
- Werkstoffmechanik
- Maschinenbau
- Elektrotechnik und Elektronik
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