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
    PublisherIEEE Institute of Electrical and Electronic Engineers
    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

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    Cite this

    Luukanen, A., Grönholm, M., Lappalainen, P., Leivo, M., Rautiainen, A., Tamminen, A., Ala-Laurinaho, J., Räisänen, A., Dietlein, C. R., & 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 IEEE Institute of Electrical and Electronic Engineers . https://doi.org/10.1109/IWAT.2010.5464793