Stark, D. et al. (2019) Si-based n-type THz Quantum Cascade Emitter. In: 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Paris, France, 1-5 September 2019, pp. 1-2. ISBN 9781538682869 (doi: 10.1109/IRMMW-THz.2019.8874354)
|
Text
202772.pdf - Accepted Version 517kB |
Abstract
Employing electronic transitions in the conduction band of semiconductor heterostructures paves a way to integrate a light source into silicon-based technology. To date all electroluminescence demonstrations of Si-based heterostructures have been p-type using hole-hole transitions. In the pathway of realizing an n-type Ge/SiGe terahertz quantum cascade laser, we present electroluminescence measurements of quantum cascade structures with top diffraction gratings. The devices for surface emission have been fabricated out of a 4-well quantum cascade laser design with 30 periods. An optical signal was observed with a maximum between 8-9 meV and full width at half maximum of roughly 4 meV.
| Item Type: | Conference Proceedings |
|---|---|
| Keywords: | Quantum cascade lasers, electroluminescence, diffraction, diffraction gratings, laser transitions, Green's function methods, pulse measurements |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Rew, Miss Kirsty and Paul, Professor Douglas |
| Authors: | Stark, D., Persichetti, L., Montanari, M., Ciano, C., Dr Gaspare, L., De Seta, M., Zollner, M., Skibitzki, O., Capellini, G., Ortolani, M., Baldassare, L., Virgilio, M., Grange, T., Birner, S., Rew, K., Paul, D., Faist, J., and Scalari, G. |
| Subjects: | Q Science > QC Physics |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| Research Group: | Semiconductor Devices |
| ISSN: | 2162-2027 |
| ISBN: | 9781538682869 |
| Copyright Holders: | Copyright © 2019 IEEE |
| Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher |
University Staff: Request a correction | Enlighten Editors: Update this record
Funder and Project Information
Funder and Project Information