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Proceedings Paper

9-um cutoff 640x512 pixel GaAs/AlxGa1-xAs quantum well infrared photodetector handheld camera
Author(s): Sarath D. Gunapala; Sumith V. Bandara; John K. Liu; S. B. Rafol; C. A. Shott; Richard W. Jones; Stanley Laband; James T. Woolaway; J. M. Fastenau; Amy W.K. Liu
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Paper Abstract

A 9 micrometers cutoff 640x512 pixel hand-held quantum well infrared photodetector (QWIP) camera has been demonstrated with excellent imagery. Based on the single pixel test data, a noise equivalent differential temperature (NETD) of 8 mI is expected at 65K operating temperature with f/2 optics at 300K background. This focal plane array has shown background limited performance (BPLI) at 72K operating temperature with the same optics and background conditions. In this paper, we discuss the development of this very sensitive long wavelength infrared (LWIR) camera based on a GaAs/AlGaAs QWIP focal plane array and its performance in quantum efficiency, NETD, uniformity, and operability.

Paper Details

Date Published: 5 August 2002
PDF: 7 pages
Proc. SPIE 4721, Infrared Detectors and Focal Plane Arrays VII, (5 August 2002); doi: 10.1117/12.478841
Show Author Affiliations
Sarath D. Gunapala, Jet Propulsion Lab. (United States)
Sumith V. Bandara, Jet Propulsion Lab. (United States)
John K. Liu, Jet Propulsion Lab. (United States)
S. B. Rafol, Jet Propulsion Lab. (United States)
C. A. Shott, Indigo Systems Corp. (United States)
Richard W. Jones, Indigo Systems Corp. (United States)
Stanley Laband, Indigo Systems Corp. (United States)
James T. Woolaway, Indigo Systems Corp. (United States)
J. M. Fastenau, IQE, Inc. (United States)
Amy W.K. Liu, IQE, Inc. (United States)

Published in SPIE Proceedings Vol. 4721:
Infrared Detectors and Focal Plane Arrays VII
Eustace L. Dereniak; Robert E. Sampson, Editor(s)

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