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Proceedings Paper

High-resolution passive video-rate imaging at 350 GHz
Author(s): Daniel Becker; Cale Gentry; Peter Ade; James Beall; Hsiao-Mei Cho; Simon Dicker; William Duncan; Mark Halpern; Gene Hilton; Kent Irwin; Peter Lowell; Michael Niemack; Nick Paulter; Carl Reintsema; Frank Schima; Robert Schwall; Carole Tucker
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Paper Abstract

We are developing a 350 GHz cryogenic passive video imaging system for use in standoff security applications. This demonstration system uses 800 photon-noise-limited superconducting transition edge sensor bolometers, read out using a time-division multiplexed readout system. It will image a 1 m x 1 m field of view at a standoff distance of 16 m to a resolution of approximately 1 cm at video frame rates (20 frames per second). High spatial resolution is achieved by the use of an f/2.0 Cassegrain optical system with 1.3 m primary mirror. Preliminary dark and optical testing of prototype detectors indicates that we can achieve a noise equivalent temperature difference (NETD) below 100 mK for the fully sampled 1 m x 1 m image at 20 frames per second. We report on the current status of development of this system.

Paper Details

Date Published: 26 May 2011
PDF: 9 pages
Proc. SPIE 8022, Passive Millimeter-Wave Imaging Technology XIV, 802206 (26 May 2011); doi: 10.1117/12.884374
Show Author Affiliations
Daniel Becker, National Institute of Standards and Technology (United States)
Cale Gentry, The Univ. of Oklahoma (United States)
Peter Ade, Cardiff Univ. (United Kingdom)
James Beall, National Institute of Standards and Technology (United States)
Hsiao-Mei Cho, National Institute of Standards and Technology (United States)
Simon Dicker, Univ. of Pennsylvania (United States)
William Duncan, National Institute of Standards and Technology (United States)
Mark Halpern, Univ. of British Columbia (Canada)
Gene Hilton, National Institute of Standards and Technology (United States)
Kent Irwin, National Institute of Standards and Technology (United States)
Peter Lowell, National Institute of Standards and Technology (United States)
Michael Niemack, National Institute of Standards and Technology (United States)
Nick Paulter, National Institute of Standards and Technology (United States)
Carl Reintsema, National Institute of Standards and Technology (United States)
Frank Schima, National Institute of Standards and Technology (United States)
Robert Schwall, National Institute of Standards and Technology (United States)
Carole Tucker, Cardiff Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 8022:
Passive Millimeter-Wave Imaging Technology XIV
David A. Wikner; Arttu R. Luukanen, Editor(s)

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