Passive hyperspectral terahertz imagery for security screening using a cryogenic microbolometer

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

doi:10.1117/12.608838

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

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

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.

Citation Download Citation

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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