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Proceedings Paper

Evolution of quantum detectors from VLWIR to FIR
Author(s): A. G. Unil Perera
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Paper Abstract

Evolution of devices for detecting smaller and smaller energy photons starting from the infrared region of the electromagnetic spectrum is described. A brief description of the extrinsic detector development for LWIR to FIR wavelengths is presented. Several other types of IR detectors including the cutoff wavelength extension into the FIR range for quantum well infrared photodetectors (QWIPs) are presented. Efforts in developing p-GaAs Homojunction Interfacial Workfunction Internal Photoemission (HIWIP) far-infrared detectors and the most recent development in GaAs/AlGaAs HEterojunction interfacial workfunction internal photoemission (HEIWIP) far-infrared detectors are also presented.

Paper Details

Date Published: 1 July 2003
PDF: 15 pages
Proc. SPIE 4999, Quantum Sensing: Evolution and Revolution from Past to Future, (1 July 2003); doi: 10.1117/12.479619
Show Author Affiliations
A. G. Unil Perera, Georgia State Univ. (United States)


Published in SPIE Proceedings Vol. 4999:
Quantum Sensing: Evolution and Revolution from Past to Future
Manijeh Razeghi; Gail J. Brown, Editor(s)

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