Schmult, Stefan and Keck, Ingo and Herrle, Thomas and Wegscheider, Werner and Bichler, Max and Schuh, Dieter and Abstreiter, Gerhard (2003) Field-effect-induced midinfrared electroluminescence of a quantum-wire-cascade structure by remote delta-doping. APPLIED PHYSICS LETTERS, 83 (10). pp. 1909-1911. ISSN 0003-6951
Full text not available from this repository.Abstract
We present a quantum-cascade emitter in the galliumarsenide/aluminum-galliumarsenide (GaAs/AlGaAs) heterosystem whose emission properties are controlled by an additional electric field perpendicular to the transport direction. In our case, the additional field is established by remote delta-silicon doping, which is also responsible for charge carrier supply. The field originating from the delta-doping gives rise to an in-plane confinement creating a quantum-wire cascade. This field-effect quantum-cascade emitter is realized using the cleaved edge overgrowth method. Radiative electronic transitions between discrete energy levels in coupled quantum wires were calculated for such a structure. Without an additional electric field, no significant transport is observed. With a field applied, midinfrared emission is observed at a peak wave number of 1200 cm(-1) with a full width at half maximum of 300 cm(-1) for a heat-sink temperature of 20 K. The presented sample is an experimental proposal for a unipolar quantum-wire intersubband laser. (C) 2003 American Institute of Physics.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | 2-DIMENSIONAL ELECTRON-GAS; LASERS; GAAS; |
| 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: | 29 Jul 2021 10:18 |
| Last Modified: | 29 Jul 2021 10:18 |
| URI: | https://pred.uni-regensburg.de/id/eprint/38611 |
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