Thermal detectors utilizing superconducting kinetic inductance and an imaging system for person security screening

Juha Hassel, Hannu Sipola, Leif Grönberg, Aki Mäyrä, Mika Aikio, Kirsi Tappura, Andrey Timofeev, A Rautiainen, Visa Vesterinen, Mikko Leivo, Feng Gao, Hannu Vasama, Arttu Luukanen

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

Abstract

Passive detection technology in submillimeter wave and THz bands is mainly utilized in astronomical imaging and security screening. Superconducting thermal detectors are one candidate for these applications. In this paper we concentrate on one particular approach based on superconducting kinetic inductance bolometers (KIBs). The technology has been developed for two main reasons: to enable integration into large detector arrays, and to enable operation with relatively compact and affordable cryogenics. Previously, we have demonstrated the basic functionality and performance of single detectors, integration into large arrays, and the capacity in concealed object detection as integrated into an imaging system. Here we review the basic structure and the properties of the KIBs, including thermal, mechanical, electrical, and quasi-optical features. We discuss the performance optimization aspects related to the heat-transfer properties of the nano-membranes defining the thermal structure of the detector. In particular, we show how the requirements of the radiation coupling set the boundary conditions for the thermal design, and discuss alternatives beyond our established technology based on absorber-coupled detectors. In addition, we describe the status of the novel fully staring imaging system aimed for person security screening, based on a 2-dimensional focal plane array with 8712 KIB-detectors. We discuss the basic functionalities of the imager, including optics, readout electronics, cryogenics, and the detectors, and present characterization and imaging results obtained with the system.
Original languageEnglish
Title of host publicationNanoscale and Microscale Heat Transfer VI
Subtitle of host publicationEurotherm seminar No 111
Pages75
Publication statusPublished - 3 Dec 2018
MoE publication typeNot Eligible
EventNanoscale and Microscale Heat Transfer VI, NMHT-VI : Eurotherm seminar No 111 - Levi, Kittilä, Finland
Duration: 2 Dec 20187 Dec 2018
Conference number: 6

Conference

ConferenceNanoscale and Microscale Heat Transfer VI, NMHT-VI
Abbreviated titleNMHT-VI
CountryFinland
CityKittilä
Period2/12/187/12/18

Fingerprint

inductance
screening
detectors
kinetics
bolometers
cryogenics
submillimeter waves
focal plane devices
readout
absorbers
heat transfer
optics
boundary conditions
membranes
requirements
optimization
radiation
electronics

Cite this

Hassel, J., Sipola, H., Grönberg, L., Mäyrä, A., Aikio, M., Tappura, K., ... Luukanen, A. (2018). Thermal detectors utilizing superconducting kinetic inductance and an imaging system for person security screening. In Nanoscale and Microscale Heat Transfer VI: Eurotherm seminar No 111 (pp. 75). [147]
Hassel, Juha ; Sipola, Hannu ; Grönberg, Leif ; Mäyrä, Aki ; Aikio, Mika ; Tappura, Kirsi ; Timofeev, Andrey ; Rautiainen, A ; Vesterinen, Visa ; Leivo, Mikko ; Gao, Feng ; Vasama, Hannu ; Luukanen, Arttu. / Thermal detectors utilizing superconducting kinetic inductance and an imaging system for person security screening. Nanoscale and Microscale Heat Transfer VI: Eurotherm seminar No 111. 2018. pp. 75
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abstract = "Passive detection technology in submillimeter wave and THz bands is mainly utilized in astronomical imaging and security screening. Superconducting thermal detectors are one candidate for these applications. In this paper we concentrate on one particular approach based on superconducting kinetic inductance bolometers (KIBs). The technology has been developed for two main reasons: to enable integration into large detector arrays, and to enable operation with relatively compact and affordable cryogenics. Previously, we have demonstrated the basic functionality and performance of single detectors, integration into large arrays, and the capacity in concealed object detection as integrated into an imaging system. Here we review the basic structure and the properties of the KIBs, including thermal, mechanical, electrical, and quasi-optical features. We discuss the performance optimization aspects related to the heat-transfer properties of the nano-membranes defining the thermal structure of the detector. In particular, we show how the requirements of the radiation coupling set the boundary conditions for the thermal design, and discuss alternatives beyond our established technology based on absorber-coupled detectors. In addition, we describe the status of the novel fully staring imaging system aimed for person security screening, based on a 2-dimensional focal plane array with 8712 KIB-detectors. We discuss the basic functionalities of the imager, including optics, readout electronics, cryogenics, and the detectors, and present characterization and imaging results obtained with the system.",
author = "Juha Hassel and Hannu Sipola and Leif Gr{\"o}nberg and Aki M{\"a}yr{\"a} and Mika Aikio and Kirsi Tappura and Andrey Timofeev and A Rautiainen and Visa Vesterinen and Mikko Leivo and Feng Gao and Hannu Vasama and Arttu Luukanen",
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Hassel, J, Sipola, H, Grönberg, L, Mäyrä, A, Aikio, M, Tappura, K, Timofeev, A, Rautiainen, A, Vesterinen, V, Leivo, M, Gao, F, Vasama, H & Luukanen, A 2018, Thermal detectors utilizing superconducting kinetic inductance and an imaging system for person security screening. in Nanoscale and Microscale Heat Transfer VI: Eurotherm seminar No 111., 147, pp. 75, Nanoscale and Microscale Heat Transfer VI, NMHT-VI , Kittilä, Finland, 2/12/18.

Thermal detectors utilizing superconducting kinetic inductance and an imaging system for person security screening. / Hassel, Juha; Sipola, Hannu; Grönberg, Leif; Mäyrä, Aki; Aikio, Mika; Tappura, Kirsi; Timofeev, Andrey; Rautiainen, A; Vesterinen, Visa; Leivo, Mikko; Gao, Feng; Vasama, Hannu; Luukanen, Arttu.

Nanoscale and Microscale Heat Transfer VI: Eurotherm seminar No 111. 2018. p. 75 147.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

TY - CHAP

T1 - Thermal detectors utilizing superconducting kinetic inductance and an imaging system for person security screening

AU - Hassel, Juha

AU - Sipola, Hannu

AU - Grönberg, Leif

AU - Mäyrä, Aki

AU - Aikio, Mika

AU - Tappura, Kirsi

AU - Timofeev, Andrey

AU - Rautiainen, A

AU - Vesterinen, Visa

AU - Leivo, Mikko

AU - Gao, Feng

AU - Vasama, Hannu

AU - Luukanen, Arttu

PY - 2018/12/3

Y1 - 2018/12/3

N2 - Passive detection technology in submillimeter wave and THz bands is mainly utilized in astronomical imaging and security screening. Superconducting thermal detectors are one candidate for these applications. In this paper we concentrate on one particular approach based on superconducting kinetic inductance bolometers (KIBs). The technology has been developed for two main reasons: to enable integration into large detector arrays, and to enable operation with relatively compact and affordable cryogenics. Previously, we have demonstrated the basic functionality and performance of single detectors, integration into large arrays, and the capacity in concealed object detection as integrated into an imaging system. Here we review the basic structure and the properties of the KIBs, including thermal, mechanical, electrical, and quasi-optical features. We discuss the performance optimization aspects related to the heat-transfer properties of the nano-membranes defining the thermal structure of the detector. In particular, we show how the requirements of the radiation coupling set the boundary conditions for the thermal design, and discuss alternatives beyond our established technology based on absorber-coupled detectors. In addition, we describe the status of the novel fully staring imaging system aimed for person security screening, based on a 2-dimensional focal plane array with 8712 KIB-detectors. We discuss the basic functionalities of the imager, including optics, readout electronics, cryogenics, and the detectors, and present characterization and imaging results obtained with the system.

AB - Passive detection technology in submillimeter wave and THz bands is mainly utilized in astronomical imaging and security screening. Superconducting thermal detectors are one candidate for these applications. In this paper we concentrate on one particular approach based on superconducting kinetic inductance bolometers (KIBs). The technology has been developed for two main reasons: to enable integration into large detector arrays, and to enable operation with relatively compact and affordable cryogenics. Previously, we have demonstrated the basic functionality and performance of single detectors, integration into large arrays, and the capacity in concealed object detection as integrated into an imaging system. Here we review the basic structure and the properties of the KIBs, including thermal, mechanical, electrical, and quasi-optical features. We discuss the performance optimization aspects related to the heat-transfer properties of the nano-membranes defining the thermal structure of the detector. In particular, we show how the requirements of the radiation coupling set the boundary conditions for the thermal design, and discuss alternatives beyond our established technology based on absorber-coupled detectors. In addition, we describe the status of the novel fully staring imaging system aimed for person security screening, based on a 2-dimensional focal plane array with 8712 KIB-detectors. We discuss the basic functionalities of the imager, including optics, readout electronics, cryogenics, and the detectors, and present characterization and imaging results obtained with the system.

M3 - Conference abstract in proceedings

SP - 75

BT - Nanoscale and Microscale Heat Transfer VI

ER -

Hassel J, Sipola H, Grönberg L, Mäyrä A, Aikio M, Tappura K et al. Thermal detectors utilizing superconducting kinetic inductance and an imaging system for person security screening. In Nanoscale and Microscale Heat Transfer VI: Eurotherm seminar No 111. 2018. p. 75. 147