Passive hyperspectral terahertz imagery for security screening using a cryogenic microbolometer

Arttu Luukanen; Aaron J. Miller; Erich N. Grossman

doi:10.1117/12.608838

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19 May 2005 Passive hyperspectral terahertz imagery for security screening using a cryogenic microbolometer

Arttu Luukanen, Aaron J. Miller, Erich N. Grossman

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Proceedings Volume 5789, Passive Millimeter-Wave Imaging Technology VIII; (2005) https://doi.org/10.1117/12.608838
Event: Defense and Security, 2005, Orlando, Florida, United States

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.

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Arttu Luukanen, Aaron J. Miller, and Erich N. Grossman "Passive hyperspectral terahertz imagery for security screening using a cryogenic microbolometer", Proc. SPIE 5789, Passive Millimeter-Wave Imaging Technology VIII, (19 May 2005); https://doi.org/10.1117/12.608838

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