Improved performance of quantum well infrared photodetectors using random scattering optical coupling
- 21 February 1994
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 64 (8), 960-962
- https://doi.org/10.1063/1.110973
Abstract
We demonstrate that a random scattering reflector on top of a quantum well infrared photodetector increases the optical coupling (i.e., increases the infrared absorption, responsivity, and detectivity) by an order of magnitude compared with a one‐dimensional grating or 45° angle of incidence geometry.Keywords
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