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Comparing the low-temperature performance of megapixel NIR InGaAs and HgCdTe imager arrays

Seshadri, S. and Cole, D. M. and Hancock, B. and Ringold, P. and Peay, C. and Wrigley, C. and Bonati, M. and Brown, M. G. and Schubnell, M. and Rahmer, G. and Guzman, D. and Figer, D. and Tarle, G. and Smith, R. M. and Bebek, C. (2007) Comparing the low-temperature performance of megapixel NIR InGaAs and HgCdTe imager arrays. In: Focal Plane Arrays for Space Telescopes III. Proceedings of SPIE. No.6690. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 669006. ISBN 9780819468383.

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We compare a more complete characterization of the low temperature performance of a nominal 1.7um cut-off wavelength 1kx1k InGaAs (lattice-matched to an InP substrate) photodiode array against similar, 2kx2k HgCdTe imagers to assess the suitability of InGaAs FPA technology for scientific imaging applications. The data we present indicate that the low temperature performance of existing InGaAs detector technology is well behaved and comparable to those obtained for state-of-the-art HgCdTe imagers for many space astronomical applications. We also discuss key differences observed between imagers in the two material systems.

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Additional Information:© 2007 Society of Photo-Optical Instrumentation Engineers (SPIE). The effort described herein was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration and funded through the Science & Technology Infrastructure program. The detector development and procurement was sponsored by the United States Department of Energy under contract No. DE-AC02-05CH11231.
Funding AgencyGrant Number
Department of Energy (DOE)DE-AC02-05CH11231
Subject Keywords:near-infrared, InGaAs, HgCdTe, low-temperature, detector, imager, focal plane array, science
Series Name:Proceedings of SPIE
Issue or Number:6690
Record Number:CaltechAUTHORS:20180619-110203529
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Official Citation:S. Seshadri, D. M. Cole, B. Hancock, P. Ringold, C. Peay, C. Wrigley, M. Bonati, M. G. Brown, M. Schubnell, G. Rahmer, D. Guzman, D. Figer, G. Tarle, R. M. Smith, C. Bebek, "Comparing the low-temperature performance of megapixel NIR InGaAs and HgCdTe imager arrays", Proc. SPIE 6690, Focal Plane Arrays for Space Telescopes III, 669006 (14 September 2007); doi: 10.1117/12.734739;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:87225
Deposited By: George Porter
Deposited On:19 Jun 2018 19:49
Last Modified:15 Nov 2021 20:46

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