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Proceedings Paper

Room temperature 640x512 pixel near-infrared InGaAs focal plane array
Author(s): Martin H. Ettenberg; Michael J. Lange; Matthew T. O'Grady; Jacobus S. Vermaak; Marshall J. Cohen; Gregory H. Olsen
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Paper Abstract

We report on the performance of a 640 X 512 pixel, indium gallium arsenide (In53Ga47As) focal plane array (FPA). The device has 25 micrometer pixels and represents the largest and finest pitched imager demonstrated in this material system. The device is sensitive to the 0.9 micrometer-to-1.7 micrometer short wave infrared band and features a room temperature detectivity, D*, greater than 5 X 1012 cm- (root)Hz/W with greater than 98% of the pixels operable. The performance of the In53Ga47As photodiode array is such that at room temperature the focal plane array is read noise- limited. The presentation will include a description of the FPA fabrication and assembly as well as characterization of dark current versus temperature, spectral response, and resolution. The implications of these results to applications such as passive night vision imaging, active illumination, covert surveillance, target designation using eye safe lasers, and target acquisition and tracking will be discussed.

Paper Details

Date Published: 17 July 2000
PDF: 7 pages
Proc. SPIE 4028, Infrared Detectors and Focal Plane Arrays VI, (17 July 2000); doi: 10.1117/12.391733
Show Author Affiliations
Martin H. Ettenberg, Sensors Unlimited, Inc. (United States)
Michael J. Lange, Sensors Unlimited, Inc. (United States)
Matthew T. O'Grady, Sensors Unlimited, Inc. (United States)
Jacobus S. Vermaak, Sensors Unlimited, Inc. (United States)
Marshall J. Cohen, Sensors Unlimited, Inc. (United States)
Gregory H. Olsen, Sensors Unlimited, Inc. (United States)

Published in SPIE Proceedings Vol. 4028:
Infrared Detectors and Focal Plane Arrays VI
Eustace L. Dereniak; Robert E. Sampson, Editor(s)

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