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; Mikko Leivo; Feng Gao; Hannu Vasama; Arttu Luukanen; Juha Hassel

doi:10.1117/12.2573891

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
, Mikko Leivo
, Feng Gao
, Hannu Vasama
, Arttu Luukanen
, Juha Hassel

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Abstract

We present a passive, fully-staring THz imaging system for security screening purposes. The camera is equipped with a multi-kilo-pixel detector array of kinetic inductance bolometers, cryogenics operating above 5 K, and a multiplexed low-noise electronics to readout the whole detector array. After briefly describing the system, we concentrate on the optical system of the instrument. We discuss the trade-offs related to the optics and justify the adopted lens material and design. Furthermore, we show measurement results characterizing the related optical performance.

Original language	English
Title of host publication	Millimetre Wave and Terahertz Sensors and Technology XIII
Editors	Neil A. Salmon, Frank Gumbmann
Place of Publication	Bellingham
Publisher	International Society for Optics and Photonics SPIE
Number of pages	9
ISBN (Print)	978-1-5106-3895-2
DOIs	https://doi.org/10.1117/12.2573891
Publication status	Published - 20 Sept 2020
MoE publication type	A4 Article in a conference publication
Event	Millimetre Wave and Terahertz Sensors and Technology XIII: Online - Virtual, United Kingdom Duration: 21 Sept 2020 → 25 Sept 2020

Publication series

Series	Proceedings of SPIE
Volume	11541
ISSN	0277-786X

Conference

Conference	Millimetre Wave and Terahertz Sensors and Technology XIII
Country/Territory	United Kingdom
Period	21/09/20 → 25/09/20

Funding

The research has received funding from the European Space Agency (ESA) through Contract No. GSTP 4000115091/15/NL/AF “Large-area staring kinetic inductance focal plane array operating at elevated temperature” and was also supported by the Academy of Finland through Grant Nos. 314447 and 317844.

Keywords

Double-Gauss lens
Optics
THz imaging system

Access to Document

10.1117/12.2573891

Cite this

Luomahaara, J., Mäyrä, A., Aikio, M., Sipola, H., Grönberg, L., Timofeev, A., Tappura, K., Rautiainen, A., Ala-Laurinaho, J., Tamminen, A., Leivo, M., Gao, F., Vasama, H., Luukanen, A., & Hassel, J. (2020). A fully-staring THz video camera with wide field-of-view and close-looking optics. In N. A. Salmon, & F. Gumbmann (Eds.), Millimetre Wave and Terahertz Sensors and Technology XIII Article 1154105 International Society for Optics and Photonics SPIE. https://doi.org/10.1117/12.2573891

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

abstract = "We present a passive, fully-staring THz imaging system for security screening purposes. The camera is equipped with a multi-kilo-pixel detector array of kinetic inductance bolometers, cryogenics operating above 5 K, and a multiplexed low-noise electronics to readout the whole detector array. After briefly describing the system, we concentrate on the optical system of the instrument. We discuss the trade-offs related to the optics and justify the adopted lens material and design. Furthermore, we show measurement results characterizing the related optical performance.",

keywords = "Double-Gauss lens, Optics, THz imaging system",

author = "Juho Luomahaara and Aki M{\"a}yr{\"a} and Mika Aikio and Hannu Sipola and Leif Gr{\"o}nberg and Andrey Timofeev and Kirsi Tappura and Anssi Rautiainen and Juha Ala-Laurinaho and Aleksi Tamminen and Mikko Leivo and Feng Gao and Hannu Vasama and Arttu Luukanen and Juha Hassel",

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booktitle = "Millimetre Wave and Terahertz Sensors and Technology XIII",

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Luomahaara, J , Mäyrä, A, Aikio, M, Sipola, H, Grönberg, L, Timofeev, A, Tappura, K, Rautiainen, A, Ala-Laurinaho, J, Tamminen, A, Leivo, M, Gao, F, Vasama, H, Luukanen, A & Hassel, J 2020, A fully-staring THz video camera with wide field-of-view and close-looking optics. in NA Salmon & F Gumbmann (eds), Millimetre Wave and Terahertz Sensors and Technology XIII., 1154105, International Society for Optics and Photonics SPIE, Bellingham, Proceedings of SPIE, vol. 11541, Millimetre Wave and Terahertz Sensors and Technology XIII, United Kingdom, 21/09/20. https://doi.org/10.1117/12.2573891

A fully-staring THz video camera with wide field-of-view and close-looking optics. / Luomahaara, Juho ; Mäyrä, Aki; Aikio, Mika et al.
Millimetre Wave and Terahertz Sensors and Technology XIII. ed. / Neil A. Salmon; Frank Gumbmann. Bellingham: International Society for Optics and Photonics SPIE, 2020. 1154105 (Proceedings of SPIE, Vol. 11541).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

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AU - Mäyrä, Aki

AU - Aikio, Mika

AU - Sipola, Hannu

AU - Grönberg, Leif

AU - Timofeev, Andrey

AU - Tappura, Kirsi

AU - Rautiainen, Anssi

AU - Ala-Laurinaho, Juha

AU - Tamminen, Aleksi

AU - Leivo, Mikko

AU - Gao, Feng

AU - Vasama, Hannu

AU - Luukanen, Arttu

AU - Hassel, Juha

PY - 2020/9/20

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N2 - We present a passive, fully-staring THz imaging system for security screening purposes. The camera is equipped with a multi-kilo-pixel detector array of kinetic inductance bolometers, cryogenics operating above 5 K, and a multiplexed low-noise electronics to readout the whole detector array. After briefly describing the system, we concentrate on the optical system of the instrument. We discuss the trade-offs related to the optics and justify the adopted lens material and design. Furthermore, we show measurement results characterizing the related optical performance.

AB - We present a passive, fully-staring THz imaging system for security screening purposes. The camera is equipped with a multi-kilo-pixel detector array of kinetic inductance bolometers, cryogenics operating above 5 K, and a multiplexed low-noise electronics to readout the whole detector array. After briefly describing the system, we concentrate on the optical system of the instrument. We discuss the trade-offs related to the optics and justify the adopted lens material and design. Furthermore, we show measurement results characterizing the related optical performance.

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T3 - Proceedings of SPIE

BT - Millimetre Wave and Terahertz Sensors and Technology XIII

A2 - Salmon, Neil A.

A2 - Gumbmann, Frank

PB - International Society for Optics and Photonics SPIE

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T2 - Millimetre Wave and Terahertz Sensors and Technology XIII

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ER -

Luomahaara J , Mäyrä A, Aikio M, Sipola H, Grönberg L, Timofeev A et al. A fully-staring THz video camera with wide field-of-view and close-looking optics. In Salmon NA, Gumbmann F, editors, Millimetre Wave and Terahertz Sensors and Technology XIII. Bellingham: International Society for Optics and Photonics SPIE. 2020. 1154105. (Proceedings of SPIE, Vol. 11541). doi: 10.1117/12.2573891

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

Abstract

Publication series

Conference

Funding

Keywords

Access to Document

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