Passive real-time submillimetre-wave imaging system utilizing antenna-coupled microbolometers for stand-off security screening applications

Arttu Luukanen, Markus Grönholm, Petteri Lappalainen, Mikko Leivo, Anssi Rautiainen, A. Tamminen, J. Ala-Laurinaho, A. Räisänen, C. R. Dietlein, E. N. Grossman

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

6 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 turn-key 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.
At present, the system provides near real time submillimetre-wave video imagery at 6 frames per second.
Original languageEnglish
Title of host publicationProceedings
Subtitle of host publicationInternational Workshop on Antenna Technology, iWAT2010
PublisherInstitute of Electrical and Electronic Engineers IEEE
Number of pages4
ISBN (Print)978-1-4244-4883-8, 978-1-4244-4885-2
DOIs
Publication statusPublished - 2010
MoE publication typeA4 Article in a conference publication
Event2010 International Workshop on Antenna, iWAT 2010 - Lisbon, Portugal
Duration: 1 Mar 20103 Mar 2010

Conference

Conference2010 International Workshop on Antenna, iWAT 2010
CountryPortugal
CityLisbon
Period1/03/103/03/10

Fingerprint

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

Cite this

Luukanen, A., Grönholm, M., Lappalainen, P., Leivo, M., Rautiainen, A., Tamminen, A., ... Grossman, E. N. (2010). Passive real-time submillimetre-wave imaging system utilizing antenna-coupled microbolometers for stand-off security screening applications. In Proceedings: International Workshop on Antenna Technology, iWAT2010 Institute of Electrical and Electronic Engineers IEEE. https://doi.org/10.1109/IWAT.2010.5464793
Luukanen, Arttu ; Grönholm, Markus ; Lappalainen, Petteri ; Leivo, Mikko ; Rautiainen, Anssi ; Tamminen, A. ; Ala-Laurinaho, J. ; Räisänen, A. ; Dietlein, C. R. ; Grossman, E. N. / Passive real-time submillimetre-wave imaging system utilizing antenna-coupled microbolometers for stand-off security screening applications. Proceedings: International Workshop on Antenna Technology, iWAT2010. Institute of Electrical and Electronic Engineers IEEE, 2010.
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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 turn-key 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. At present, the system provides near real time submillimetre-wave video imagery at 6 frames per second.",
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Luukanen, A, Grönholm, M, Lappalainen, P, Leivo, M, Rautiainen, A, Tamminen, A, Ala-Laurinaho, J, Räisänen, A, Dietlein, CR & Grossman, EN 2010, Passive real-time submillimetre-wave imaging system utilizing antenna-coupled microbolometers for stand-off security screening applications. in Proceedings: International Workshop on Antenna Technology, iWAT2010. Institute of Electrical and Electronic Engineers IEEE, 2010 International Workshop on Antenna, iWAT 2010, Lisbon, Portugal, 1/03/10. https://doi.org/10.1109/IWAT.2010.5464793

Passive real-time submillimetre-wave imaging system utilizing antenna-coupled microbolometers for stand-off security screening applications. / Luukanen, Arttu; Grönholm, Markus; Lappalainen, Petteri; Leivo, Mikko; Rautiainen, Anssi; Tamminen, A.; Ala-Laurinaho, J.; Räisänen, A.; Dietlein, C. R.; Grossman, E. N.

Proceedings: International Workshop on Antenna Technology, iWAT2010. Institute of Electrical and Electronic Engineers IEEE, 2010.

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

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AU - Luukanen, Arttu

AU - Grönholm, Markus

AU - Lappalainen, Petteri

AU - Leivo, Mikko

AU - Rautiainen, Anssi

AU - Tamminen, A.

AU - Ala-Laurinaho, J.

AU - Räisänen, A.

AU - Dietlein, C. R.

AU - Grossman, E. N.

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N2 - 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 turn-key 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. At present, the system provides near real time submillimetre-wave video imagery at 6 frames per second.

AB - 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 turn-key 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. At present, the system provides near real time submillimetre-wave video imagery at 6 frames per second.

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M3 - Conference article in proceedings

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BT - Proceedings

PB - Institute of Electrical and Electronic Engineers IEEE

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Luukanen A, Grönholm M, Lappalainen P, Leivo M, Rautiainen A, Tamminen A et al. Passive real-time submillimetre-wave imaging system utilizing antenna-coupled microbolometers for stand-off security screening applications. In Proceedings: International Workshop on Antenna Technology, iWAT2010. Institute of Electrical and Electronic Engineers IEEE. 2010 https://doi.org/10.1109/IWAT.2010.5464793