Ulbrich, N. and Bauer, J. and Scarpa, G. and Boy, R. and Schuh, D. and Abstreiter, G. and Schmult, S. and Wegscheider, Werner (2003) Midinfrared intraband electroluminescence from AlInAs quantum dots. APPLIED PHYSICS LETTERS, 83 (8). pp. 1530-1532. ISSN 0003-6951
Full text not available from this repository.Abstract
Midinfrared electroluminescence from a cascade of coupled AlInAs quantum dots and GaAs quantum wells at low temperature (80 K) is demonstrated. At low injection currents, the spectra show a clear peak at 158 meV with a luminescence width of 15 meV which is associated with transitions from the s shells of a resonant subensemble of quantum dots. A Stark shift to 143 meV and spectral broadening is observed at higher injection currents which is associated with luminescence from the inhomogeneously broadened quantum-dot ensemble. The reported design is a possible solution to obtain population inversion in unipolar quantum-dot-cascade structures. (C) 2003 American Institute of Physics.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CASCADE LASERS; MU-M; SEMICONDUCTOR-LASER; OPERATION; LUMINESCENCE; TEMPERATURE; EMISSION; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 04 Aug 2021 11:40 |
| Last Modified: | 04 Aug 2021 11:40 |
| URI: | https://pred.uni-regensburg.de/id/eprint/38717 |
Actions (login required)
 |
View Item |
