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

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

doi:10.1117/12.734739

14 September 2007 Comparing the low-temperature performance of megapixel NIR InGaAs and HgCdTe imager arrays

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

Author Affiliations +

Proceedings Volume 6690, Focal Plane Arrays for Space Telescopes III; 669006 (2007) https://doi.org/10.1117/12.734739
Event: Optical Engineering + Applications, 2007, San Diego, California, United States

Abstract

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.

Citation Download 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, and 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); https://doi.org/10.1117/12.734739

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available