High-resolution passive video-rate imaging at 350 GHz

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

doi:10.1117/12.884374

26 May 2011 High-resolution passive video-rate imaging at 350 GHz

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

Author Affiliations +

Proceedings Volume 8022, Passive Millimeter-Wave Imaging Technology XIV; 802206 (2011) https://doi.org/10.1117/12.884374
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

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.

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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, and Carole Tucker "High-resolution passive video-rate imaging at 350 GHz", Proc. SPIE 8022, Passive Millimeter-Wave Imaging Technology XIV, 802206 (26 May 2011); https://doi.org/10.1117/12.884374

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