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 → …

Fingerprint

Schmidt cameras
closed cycles
weapons
scanners
readout
antennas
spatial resolution
apertures
cameras
optics
broadband
sensors
detectors
electronics

Keywords

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

Cite this

Luukanen, A., Helistö, P., Lappalainen, P., Leivo, M., Rautiainen, A., Toivanen, H., ... 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
Luukanen, Arttu ; Helistö, Panu ; Lappalainen, P. ; Leivo, Mikko ; Rautiainen, Anssi ; Toivanen, Hans ; Seppä, Heikki ; Taylor, Z. ; Dietlein, C.R. ; Grossman, E.N. / Stand-off passive THz imaging at 8-meter stand-off distance : Results from a 64-channel real-time imager. Proceedings of SPIE : Passive Millimeter-Wave Imaging Technology XII. editor / Roger Appleby. International Society for Optics and Photonics SPIE, 2009.
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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.",
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Luukanen, A, Helistö, P, Lappalainen, P, Leivo, M, Rautiainen, A, Toivanen, H, Seppä, H, Taylor, Z, Dietlein, CR & Grossman, EN 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, SPIE Defense, Security, and Sensing. Passive Millimeter-Wave Imaging Technology XII, Orlando, FL, United States, 16/04/09. https://doi.org/10.1117/12.821996

Stand-off passive THz imaging at 8-meter stand-off distance : Results from a 64-channel real-time imager. / Luukanen, Arttu; Helistö, Panu; Lappalainen, P.; Leivo, Mikko; Rautiainen, Anssi; Toivanen, Hans; Seppä, Heikki; Taylor, Z.; Dietlein, C.R.; Grossman, E.N.

Proceedings of SPIE : Passive Millimeter-Wave Imaging Technology XII. ed. / Roger Appleby. International Society for Optics and Photonics SPIE, 2009. 73090F.

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

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Luukanen A, Helistö P, Lappalainen P, Leivo M, Rautiainen A, Toivanen H et al. Stand-off passive THz imaging at 8-meter stand-off distance: Results from a 64-channel real-time imager. In Appleby R, editor, Proceedings of SPIE : Passive Millimeter-Wave Imaging Technology XII. International Society for Optics and Photonics SPIE. 2009. 73090F https://doi.org/10.1117/12.821996