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Proceedings Paper

10- to 16-um broadband 640 x 512 GaAs/AlGaAs quantum well infrared photodetector (QWIP) focal plane array
Author(s): Sarath D. Gunapala; Sumith V. Bandara; John K. Liu; S. B. Rafol; Jason M. Mumolo; Francis M. Reininger; J. M. Fastenau; A. K. Liu
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Paper Abstract

A 10-16 μm cutoff large format broadband quantum well infrared photodetector (QWIP) focal plane array (FPA) has been demonstrated. The size of the FPA is 640 X 512 and its pixel pitch is 25 microns. The highest operating temperature of the FPA is 45 K, and it was determined by the charge storage capacity and the other features of the particular readout multiplexer used in this demonstration. Excellent imagery, with a noise equivalent differential temperature (NE(Delta) T) of 55 mK has been achieved. In this presentation, we will discuss the development of this large format broadband infrared FPA based on a GaAs/AlGaAs materials system and its performance in quantum efficiency, NE(Delta) T, uniformity, and operability.

Paper Details

Date Published: 10 October 2001
PDF: 8 pages
Proc. SPIE 4369, Infrared Technology and Applications XXVII, (10 October 2001); doi: 10.1117/12.445352
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)
Jason M. Mumolo, Jet Propulsion Lab. (United States)
Francis M. Reininger, Jet Propulsion Lab. (United States)
J. M. Fastenau, Jet Propulsion Lab. (United States)
A. K. Liu, IQE Inc. (United States)

Published in SPIE Proceedings Vol. 4369:
Infrared Technology and Applications XXVII
Bjorn F. Andresen; Gabor F. Fulop; Marija Strojnik, Editor(s)

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