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Optical Engineering • Open Access

Development of sensitive long-wave infrared detector arrays for passively cooled space missions
Author(s): Craig McMurty; Donald L. Lee; James Beletic; Chi-Yi A. Chen; Richard T. Demers; Meghan Dorn; Dennis D. Edwall; Candice M. Fazar; William J. Forrest; Fengchuan Liu; Amanda K. Mainzer; Judith L. Pipher; Aristo Yulius

Paper Abstract

The near-earth object camera (NEOCam) is a proposed infrared space mission designed to discover and characterize most of the potentially hazardous asteroids larger than 140 m in diameter that orbit near the Earth. NASA has funded technology development for NEOCam, including the development of long wavelength infrared detector arrays that will have excellent zodiacal background emission-limited performance at passively cooled focal plane temperatures. Teledyne Imaging Sensors has developed and delivered for test at the University of Rochester the first set of approximately 10 μm cutoff, 1024×1024 pixel HgCdTe detector arrays. Measurements of these arrays show the development to be extremely promising: noise, dark current, quantum efficiency, and well depth goals have been met by this technology at focal plane temperatures of 35 to 40 K, readily attainable with passive cooling. The next set of arrays to be developed will address changes suggested by the first set of deliverables.

Paper Details

Date Published: 29 April 2013
PDF: 10 pages
Opt. Eng. 52(9) 091804 doi: 10.1117/1.OE.52.9.091804
Published in: Optical Engineering Volume 52, Issue 9
Show Author Affiliations
Craig McMurty, Univ. of Rochester (United States)
Donald L. Lee, Teledyne Imaging Sensors (United States)
James Beletic, Teledyne Imaging Sensors (United States)
Chi-Yi A. Chen, Teledyne Imaging Sensors (United States)
Richard T. Demers, Teledyne Imaging Sensors (United States)
Meghan Dorn, Univ. of Rochester (United States)
Dennis D. Edwall, Teledyne Scientific Co. (United States)
Candice M. Fazar, Univ. of Rochester (United States)
William J. Forrest, Univ. of Rochester (United States)
Fengchuan Liu, Jet Propulsion Lab. (United States)
Amanda K. Mainzer, Jet Propulsion Lab. (United States)
Judith L. Pipher, Univ. of Rochester (United States)
Aristo Yulius, Teledyne Imaging Sensors (United States)

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