Stand-off passive THz imaging at 8-meter stand-off distance: Results from a 64-channel real-time imager

Arttu Luukanen, Panu Helistö, P. Lappalainen, Mikko Leivo, Anssi Rautiainen, Hans Toivanen, Heikki Seppä, Z. Taylor, C.R. Dietlein, E.N. Grossman

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

15 Citations (Scopus)

Abstract

At present, the imaging of concealed weapons and contraband is primarily carried out at a relatively short stand-off range of a few meters mainly because of spatial resolution considerations.
In order to maintain a reasonable aperture size, there is a desire to extend the operating frequency towards 1 THz. In this paper we report the progress on a video-rate THz camera demonstrator which utilizes broadband antenna-coupled microbolometers as detectors, operated within a turnkey commercial closed-cycle cryocooler.
A full system has been integrated consisting of 64 parallel sensors and readout electronics, and reflective Schmidt camera optics incorporating a conical scanner for real time imaging.
Original languageEnglish
Title of host publicationProceedings of SPIE
Subtitle of host publicationPassive Millimeter-Wave Imaging Technology XII
EditorsRoger Appleby
PublisherInternational Society for Optics and Photonics SPIE
ISBN (Print)978-0-8194-7575-6
DOIs
Publication statusPublished - 2009
MoE publication typeA4 Article in a conference publication
EventSPIE Defense, Security, and Sensing. Passive Millimeter-Wave Imaging Technology XII - Orlando, FL, United States
Duration: 16 Apr 2009 → …

Conference

ConferenceSPIE Defense, Security, and Sensing. Passive Millimeter-Wave Imaging Technology XII
CountryUnited States
CityOrlando, FL
Period16/04/09 → …

Keywords

  • imaging
  • imaging detector
  • THz imaging
  • Terahertz
  • concealed weapons
  • concealed weapons detection

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    Luukanen, A., Helistö, P., Lappalainen, P., Leivo, M., Rautiainen, A., Toivanen, H., Seppä, H., Taylor, Z., Dietlein, C. R., & Grossman, E. N. (2009). Stand-off passive THz imaging at 8-meter stand-off distance: Results from a 64-channel real-time imager. In R. Appleby (Ed.), Proceedings of SPIE : Passive Millimeter-Wave Imaging Technology XII [73090F] International Society for Optics and Photonics SPIE. https://doi.org/10.1117/12.821996