Terahertz difference-frequency-generation quantum cascade lasers on silicon with wire grid current injectors
Abstract
We propose the concept and experimentally verify the operation of terahertz quantum cascade laser sources based on intra-cavity Cherenkov difference-frequency generation on a silicon substrate with the current injection layer configured as a metal wire grid. Such a current injector configuration enables high transmission of TM-polarized terahertz radiation into the silicon substrate while simultaneously providing a low-resistivity metal contact for current injection.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jun 29, 2022
- Source ID
- 10.1364/oe.454780
Entities
People
- D. Botez
- Jae Hyun Kim
- Jeremy D. Kirch
- Jialin Mei
- Jiaming Xu
- L. J. Mawst
- Mikhail A. Belkin
- Seungyong Jung
- Wolfhard Oberhausen
Organizations
- Army Research Office
- German Research Foundation
- Kwanjeong Educational Foundation
- Technical University of Munich
- University of Texas at Austin
- University of Wisconsin–Madison