Quantum well infrared photodetectors for low-background applications

Details Quantum well infrared photodetectors for low-background applications Quantum well infrared photodetectors for low-background applications

Jul 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998spie.3379..225g&link_type=abstract

Proc. SPIE Vol. 3379, p. 225-234, Infrared Detectors and Focal Plane Arrays V, Eustace L. Dereniak; Robert E. Sampson; Eds.

Computer Science

Performance

Scientific paper

High performance long-wavelength GaAs/AlxGa1-xAs quantum well infrared photodetectors for low background applications have been demonstrated. This is the first theoretical analysis of quantum well infrared photodetectors for low background applications and the detectivity D* of 6 X 1013 cm(root)Hz/W has been achieved at T equals 40 K with 2 X 109 photons/cm2/sec background. In addition, this paper describes the demonstration of mid- wavelength/long-wavelength dualband quantum well infrared photodetectors and long-wavelength/very long-wavelength dualband quantum well infrared photodetectors in 4 - 26 micrometer wavelength region.

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