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Proceedings Paper

Passive hyperspectral terahertz imagery for security screening using a cryogenic microbolometer
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Paper Abstract

We present passive indoor imagery of human subjects in the 100 - 1000 GHz band. In order to obtain adequate sensitivity, a cryogenically cooled (4 K), broadband antenna-coupled, superconducting microbolometer with optical noise equivalent power NEP < 2 pW/rtHz was used as the sensor. Mechanical scanning of the collecting aperture, a 30 cm diameter spherical mirror, was used to slowly accumulate the images. While not yet practical for deployable real-time cameras, this system provides valuable phenomenological comparisons with similar imagery obtained with actively illuminated systems.

Paper Details

Date Published: 19 May 2005
PDF: 8 pages
Proc. SPIE 5789, Passive Millimeter-Wave Imaging Technology VIII, (19 May 2005); doi: 10.1117/12.608838
Show Author Affiliations
Arttu Luukanen, National Institute of Standards and Technology (United States)
Aaron J. Miller, National Institute of Standards and Technology (United States)
Erich N. Grossman, National Institute of Standards and Technology (United States)


Published in SPIE Proceedings Vol. 5789:
Passive Millimeter-Wave Imaging Technology VIII
Roger Appleby; David A. Wikner, Editor(s)

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