4.6 Article

Terahertz quantum-well photodetector

Journal

APPLIED PHYSICS LETTERS
Volume 84, Issue 20, Pages 4068-4070

Publisher

AMER INST PHYSICS
DOI: 10.1063/1.1751620

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The design and projected performance of quantum-well infrared photodetectors (QWIP) for the terahertz (1-10 THz) or the very-far-infrared region are presented together with our initial demonstration of a GaAs/AlGaAs QWIP working at photon energies below the optical phonons. We point out the problem with this initial device, discuss possible causes, and suggest areas of improvement.

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