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Proceedings Paper

Space mid-IR detectors from DRS
Author(s): Henry H. Hogue; Matthew L. Guptill; David Reynolds; Ernest W. Atkins; Maryn G. Stapelbroek
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Paper Abstract

The Blocked Impurity Band (BIB) detector was invented in the early 1980's and subsequently developed by our team. The original arsenic-doped silicon (Si:As) detectors addressed the need for low-noise, radiation-tolerant, mid-IR detectors for defense surveillance from space. We have since developed large-format BIB focal plane arrays to address high-background requirements of ground-based telescopes and missile interceptors, low-background requirements of the Space Infrared Telescope Facility (SIRTF), and very low background requirements of the mid-IR instruments for the Next Generation Space Telescope (NGST) and Terrestrial Planet Finder. Most of these applications employ Si:As BIB detectors, but antimony-doped silicon (Si:Sb) BIB detectors are used for some SIRTF bands. Other demonstrated types including phosphorus (Si:P) and gallium-doped (Si:Ga) BIB detectors may have application niches. We have proposed development of a BIB detector type utilizing both Si:As and Si:P layers to optimize dark current vs. wavelength performance. Wavelength response for silicon BIB detectors extend to a maximum of ~40 microns (Si:Sb), but we have also demonstrated germanium BIB detectors for wavelengths extending to several hundred microns. We are currently developing germanium BIB detector arrays for astrophysics applications, including space telescopes beyond NGST.

Paper Details

Date Published: 5 March 2003
PDF: 10 pages
Proc. SPIE 4850, IR Space Telescopes and Instruments, (5 March 2003); doi: 10.1117/12.461584
Show Author Affiliations
Henry H. Hogue, DRS Sensors and Targeting Systems, Inc. (United States)
Matthew L. Guptill, DRS Sensors and Targeting Systems, Inc. (United States)
David Reynolds, DRS Sensors and Targeting Systems, Inc. (United States)
Ernest W. Atkins, DRS Sensors and Targeting Systems, Inc. (United States)
Maryn G. Stapelbroek, DRS Sensors and Targeting Systems, Inc. (United States)

Published in SPIE Proceedings Vol. 4850:
IR Space Telescopes and Instruments
John C. Mather, Editor(s)

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