Terahertz quantum-well photodetectors

Terahertz (1–10 THz) quantum-well infrared photodetectors (QWIP) have been investigated. The design and projected performance are presented together with experimental results on a 7-THz peaked GaAs/AlGaAs QWIP, working at photon energies below the optical phonons. We point out the problem with this...

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Bibliographic Details
Published in:Infrared physics & technology 2005-10, Vol.47 (1), p.169-174
Main Authors: Liu, H.C., Song, C.Y., SpringThorpe, A.J., Cao, J.C.
Format: Article
Language:English
Subjects:
Applied sciences
Electronics
Exact sciences and technology
Optoelectronic device characterization, design, and modeling
Optoelectronic devices
Photodetectors (including infrared and CCD detectors)
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
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Summary:Terahertz (1–10 THz) quantum-well infrared photodetectors (QWIP) have been investigated. The design and projected performance are presented together with experimental results on a 7-THz peaked 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 and further work.
ISSN:1350-4495
1879-0275
DOI:10.1016/j.infrared.2005.02.022