A novel design of an IR photodetector operating at wavelengths around 10 μm is presented. It is based on a three-level quantum coherence effect in semiconductor quantum dots as measured in balanced-homodyne detection in a Mach-Zehnder interferometer. The advantage of this design is the combination of room-temperature operation and fast response time, whereas the major drawback is the high noise-equivalent power.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics