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Proceedings Paper

Characterization of Rockwell Scientific LWIR HgCdTe detector arrays
Author(s): Candice M. Bacon; Craig W. McMurtry; Judith L. Pipher; William J. Forrest; James D. Garnett; Donald Lee; Dennis D. Edwall
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Paper Abstract

Future infrared space missions will undoubtedly employ passively cooled focal plane arrays (T ~ 30K), as well as passively cooled telescopes. Most long-wave detector arrays (e.g. Si:As IBC) require cooling to temperatures of ~ 6-8K. We have been working with Rockwell Scientific Company to produce ≥ 10 μm cutoff HgCdTe detector arrays that, at temperatures of ~ 30K, exhibit sufficiently low dark current and sufficiently high detective quantum efficiency, as well as high uniformity in these parameters, to be interesting for astronomy. Our goal is to achieve dark current below the target value of ~30 e-/s/pixel with at least 60mV of actual reverse bias across the diodes at T ~ 30K. To this end, Rockwell Scientific Company has delivered the first array in a new order, for characterization in Rochester. Recent array deliveries of 10μm cutoff HgCdTe bonded to a Hawaii-1RG multiplexer utilize the smallest capacitance diode type. We present preliminary results on this latest 10 μm cutoff HgCdTe low dark current detector array.

Paper Details

Date Published: 12 January 2004
PDF: 7 pages
Proc. SPIE 5167, Focal Plane Arrays for Space Telescopes, (12 January 2004); doi: 10.1117/12.506427
Show Author Affiliations
Candice M. Bacon, Univ. of Rochester (United States)
Craig W. McMurtry, Univ. of Rochester (United States)
Judith L. Pipher, Univ. of Rochester (United States)
William J. Forrest, Univ. of Rochester (United States)
James D. Garnett, Rockwell Scientific Co. (United States)
Donald Lee, Rockwell Scientific Co. (United States)
Dennis D. Edwall, Rockwell Scientific Co. (United States)

Published in SPIE Proceedings Vol. 5167:
Focal Plane Arrays for Space Telescopes
Thomas J. Grycewicz; Craig R. McCreight, Editor(s)

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