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26 April 2010 A microbolometer-based THz imager
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Abstract
THz imaging is a very promising field rapidly growing in importance. This expanding field is at its early stage of development but already a large number of applications are foreseen. THz imaging promises to be a key technology in various fields, such as defense & security where it can be used to defeat camouflage. Based on its many years of experience in uncooled bolometers technology, INO has developed, assembled and characterized a prototype THz imager. The camera's 160 × 120 pixel array consists of pixels with a 52 μm pitch that have been optimized for the THz region. Custom camera electronics and an F/1 THz lens barrel complete the imager design. Real-time imaging at video rate of 30 frame/sec has been performed with a 3 THz quantum cascade laser set-up. THz images of numerous object-obscurant combinations are presented, proving the feasibility of video imaging in security screening applications.
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Linda Marchese, Martin Bolduc, Bruno Tremblay, Michel Doucet, Hassane Oulachgar, Loïc Le Noc, Fraser Williamson, Christine Alain, Hubert Jerominek, and Alain Bergeron "A microbolometer-based THz imager", Proc. SPIE 7671, Terahertz Physics, Devices, and Systems IV: Advanced Applications in Industry and Defense, 76710Z (26 April 2010); https://doi.org/10.1117/12.850723
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