26 May 2011 Design and performance of a passive video-rate THz system demonstrator
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Abstract
In this paper we given an overview of the design and predicted performance of a passive video-rate THz camera intended for stand-off and walk-by concealed weapons and explosives detection. The system is based on previously reported work, and it utilizes a linear array of superconducting antenna-coupled microbolometers. Our present efforts have focussed on improving the performance, stability, set-up time and cost of production of the camera. The system is designed to acquire near video frame rate (~10 Hz) passive THz imagery of objects at ~5 meters from the system, with a field-of-view of 2 m x 1 m and a spatial resolution of 1 cm. The system will be readily integrated to other security systems as it provides encrypted stream of THz imagery over conventional LAN interface that also allows for remote operation.
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A. Luukanen, M. Aikio, M. Grönholm, M. M. Leivo, A. Mäyrä, A. Rautiainen, H. Toivanen, "Design and performance of a passive video-rate THz system demonstrator", Proc. SPIE 8022, Passive Millimeter-Wave Imaging Technology XIV, 802207 (26 May 2011); doi: 10.1117/12.883865; https://doi.org/10.1117/12.883865
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