Design of L-Valley Ge/GeSiSn Waveguide Quantum Cascade Detector
- Resource Type
- Conference
- Authors
- Sun, Greg; Soref, Richard; Khurgin, Jacob; Yu, Shui-Qing; Chang, Guo-En
- Source
- 2023 Conference on Lasers and Electro-Optics (CLEO) Lasers and Electro-Optics (CLEO), 2023 Conference on. :1-2 May, 2023
- Subject
- Photonics and Electrooptics
Photoconducting materials
Optical buffering
Detectors
Optical detectors
Germanium
Silicon
Photodiodes
- Language
We propose a lattice-matched Ge/GeSiSn quantum cascade detector (QCD) capable of operating in the longwave infrared. The optical absorption and carrier transport based on intersubband transitions all occur within the L-valley of the conduction band.