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Proceedings Paper

640x512 pixel four-band, broadband, and narrowband quantum well infrared photodetector focal plane arrays
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; A. K. Liu; Murzy D. Jhabvala; Kwong-Kit Choi
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Paper Abstract

A 9 μm cutoff 640×512 pixel hand-held quantum well IR photodetector (QWIP) camera has been demonstrated wiht excellent imagery. Based on the single pixel test data, a nose equivalent differential temperature (NETD) of 8 mK is expected at 65K operating temperature with f/2 optics at 300K background. This focal plane array has shown backgeround lmiited performance at 72K operating temperature with the same optics and background conditions. In this paper, we discuss the development of this very sensitive long wavelength IR (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: 23 January 2003
PDF: 12 pages
Proc. SPIE 4820, Infrared Technology and Applications XXVIII, (23 January 2003); doi: 10.1117/12.453574
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)
A. K. Liu, IQE Inc. (United States)
Murzy D. Jhabvala, NASA Goddard Space Flight Ctr. (United States)
Kwong-Kit Choi, Army Research Lab. (United States)

Published in SPIE Proceedings Vol. 4820:
Infrared Technology and Applications XXVIII
Bjorn F. Andresen; Gabor F. Fulop; Marija Strojnik, Editor(s)

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