19 μm cutoff long-wavelength GaAs/AlxGa1−xAs quantum-well infrared photodetectors
- 15 May 1992
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 71 (10) , 5130-5135
- https://doi.org/10.1063/1.350618
Abstract
The longest‐wavelength quantum‐well infrared photodetector ever achieved, with a cutoff wavelength λc=19 μm, is demonstrated. Detailed measurements and an in‐depth analysis of the noise, optical gain, detectivity, quantum efficiency, and quantum‐well escape probability, are also discussed.This publication has 28 references indexed in Scilit:
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