@inproceedings{6bbe229ebbc8443bb988902d5b5fe700,
title = "Passive THz imaging system for stand-off identification of concealed objects: Results from a turn-key 16 pixel imager",
abstract = "Passive imaging of concealed objects at stand-off distances in excess of a few meters requires both excellent spatial, thermal and temporal resolution from the terahertz imaging system. The combination of these requirements while keeping the overall system cost at a reasonable level has been the motivation for this joint work. The THz imaging system under development is capable of sub-Kelvin NETD at video frame rates. In this paper we report the first imaging results from a 16-pixel array of superconducting antenna-coupled NbN vacuum-bridge microbolometers, operated within a cryogen-free, turn-key refrigerator. In addition to the system overview, we shall also address the uniformity of the detectors and present passive indoors raster-scanned imagery.",
keywords = "Bolometers, Concealed weapons detection, Cryogenic detectors, Passive mm-wave imaging, Stand-off detection, Superconducting sensors, THz imaging",
author = "A. Luukanen and Leif Gr{\"o}nberg and Tuomas Haarnoja and Panu Helist{\"o} and K. Kataja and Mikko Leivo and Anssi Rautiainen and J. Penttil{\"a} and Bjarnason, {J. E.} and Dietlein, {C. R.} and Ramirez, {M. D.} and Grossman, {E. N.}",
year = "2008",
doi = "10.1117/12.784922",
language = "English",
isbn = " 9780819471390 ",
series = "Proceedings of SPIE",
publisher = "International Society for Optics and Photonics SPIE",
number = "6948",
editor = "Roger Appleby",
booktitle = "Passive Millimeter-Wave Imaging Technology XI",
address = "United States",
note = "SPIE Defense and Security Symposium : Passive Millimeter-Wave Imaging Technology XI ; Conference date: 16-03-2008 Through 20-03-2008",
}