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Proceedings Paper

VLIWR HgCdTe staring focal plane array development
Author(s): James Stobie; Allen Hairston; Steve Tobin; Marion Reine; Bob Minich; Joseph Welsch; John Marciniec
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Paper Abstract

Atmospheric remote-sensing have been one of the primary drivers toward longer wavelength infrared sensors beyond the 8 to 12 um atmospheric window typically used for terrestrial imaging systems. This paper presents the recent performance improvement attained with very long wavelength infrared (VLWIR) focal plane arrays, by the stringent control of the small bandgap HgCdTe material quality. Array operability is further enhanced by design using a 2:1 super-pixel detector format scheme with programmable bad element de-select and our new detector input offset optimization circuitry within each unit cell. Focal plane arrays with peak quantum efficiencies in excess of 80 percent, and cutoff wavelengths out to 15 μm have NEI operabilities around 95 percent for mid 1014 ph/s-cm2 fluxes operating near 50 K. Average NEI of 3.5 x 1010 ph/s-cm2 was demonstrated for a 14 μm cutoff wavelength focal plane array, consisting of over 55,000 elements, operating with an effective sample time of 87.5 ms.

Paper Details

Date Published: 12 September 2007
PDF: 10 pages
Proc. SPIE 6660, Infrared Systems and Photoelectronic Technology II, 66600L (12 September 2007); doi: 10.1117/12.729369
Show Author Affiliations
James Stobie, BAE Systems Electronics & Integrated Solutions (United States)
Allen Hairston, BAE Systems Electronics & Integrated Solutions (United States)
Steve Tobin, BAE Systems Electronics & Integrated Solutions (United States)
Marion Reine, BAE Systems Electronics & Integrated Solutions (United States)
Bob Minich, BAE Systems Electronics & Integrated Solutions (United States)
Joseph Welsch, BAE Systems Electronics & Integrated Solutions (United States)
John Marciniec, BAE Systems Electronics & Integrated Solutions (United States)


Published in SPIE Proceedings Vol. 6660:
Infrared Systems and Photoelectronic Technology II
Eustace L. Dereniak; John P. Hartke; Randolph E. Longshore; Ashok K. Sood, Editor(s)

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