A fully-staring THz video camera with wide field-of-view and close-looking optics

Juho Luomahaara; Aki Mäyrä; Mika Aikio; Hannu Sipola; Leif Grönberg; Andrey Timofeev; Kirsi Tappura; Anssi Rautiainen; Juha Ala-Laurinaho; Aleksi Tamminen; Visa Vesterinen; Mikko Leivo; Feng Gao; Hannu Vasama; Arttu Luukanen; Juha Hassel

doi:10.1117/12.2573891

20 September 2020 A fully-staring THz video camera with wide field-of-view and close-looking optics

Juho Luomahaara, Aki Mäyrä, Mika Aikio, Hannu Sipola, Leif Grönberg, Andrey Timofeev, Kirsi Tappura, Anssi Rautiainen, Juha Ala-Laurinaho, Aleksi Tamminen, Visa Vesterinen, Mikko Leivo, Feng Gao, Hannu Vasama, Arttu Luukanen, Juha Hassel

Author Affiliations +

Proceedings Volume 11541, Millimetre Wave and Terahertz Sensors and Technology XIII; 1154105 (2020) https://doi.org/10.1117/12.2573891
Event: SPIE Security + Defence, 2020, Online Only

Abstract

We discuss about a fully-staring THz video camera prototype intended for security screening. The camera utilizes so-called kinetic inductance bolometers to detect THz radiation in the bandwidth of 0.3-1 THz. The imaging distance is 2.5 m with the nominal field-of-view of 2 m × 1 m. The camera is equipped with a kilo-pixel detector array, intermediate-scale cryogenics operating at 6 K, and low-noise electronics to read out the whole detector array. Here, we focus on describing the wide field-of-view and close-looking optical system of the imager.

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Juho Luomahaara, Aki Mäyrä, Mika Aikio, Hannu Sipola, Leif Grönberg, Andrey Timofeev, Kirsi Tappura, Anssi Rautiainen, Juha Ala-Laurinaho, Aleksi Tamminen, Visa Vesterinen, Mikko Leivo, Feng Gao, Hannu Vasama, Arttu Luukanen, and Juha Hassel "A fully-staring THz video camera with wide field-of-view and close-looking optics", Proc. SPIE 11541, Millimetre Wave and Terahertz Sensors and Technology XIII, 1154105 (20 September 2020); https://doi.org/10.1117/12.2573891

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