Passive THz imaging system for stand-off identification of concealed objects: Results from a turn-key 16 pixel imager

A. Luukanen; Leif Grönberg; Tuomas Haarnoja; Panu Helistö; K. Kataja; Mikko Leivo; Anssi Rautiainen; J. Penttilä; J. E. Bjarnason; C. R. Dietlein; M. D. Ramirez; E. N. Grossman

doi:10.1117/12.784922

Passive THz imaging system for stand-off identification of concealed objects: Results from a turn-key 16 pixel imager

A. Luukanen
, Leif Grönberg
, Tuomas Haarnoja
, Panu Helistö
, K. Kataja
, Mikko Leivo
, Anssi Rautiainen
, J. Penttilä
, J. E. Bjarnason
, C. R. Dietlein
, M. D. Ramirez
, E. N. Grossman

MilliLab
Aivon Oy
University of Colorado Boulder
National Institute of Standards and Technology (NIST)

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

13 Citations (Scopus)

Abstract

Passive imaging of concealed objects at stand-off distances in excess of a few meters requires both excellent spatial, thermal and temporal resolution from the terahertz imaging system. The combination of these requirements while keeping the overall system cost at a reasonable level has been the motivation for this joint work. The THz imaging system under development is capable of sub-Kelvin NETD at video frame rates. In this paper we report the first imaging results from a 16-pixel array of superconducting antenna-coupled NbN vacuum-bridge microbolometers, operated within a cryogen-free, turn-key refrigerator. In addition to the system overview, we shall also address the uniformity of the detectors and present passive indoors raster-scanned imagery.

Original language	English
Title of host publication	Passive Millimeter-Wave Imaging Technology XI
Subtitle of host publication	SPIE Defence and Security Symposium
Editors	Roger Appleby
Publisher	International Society for Optics and Photonics SPIE
Number of pages	9
ISBN (Print)	9780819471390
DOIs	https://doi.org/10.1117/12.784922
Publication status	Published - 2008
MoE publication type	A4 Article in a conference publication
Event	SPIE Defense and Security Symposium: Passive Millimeter-Wave Imaging Technology XI - Orlando, United States Duration: 16 Mar 2008 → 20 Mar 2008

Publication series

Series	Proceedings of SPIE
Number	6948
ISSN	0277-786X

Conference

Conference	SPIE Defense and Security Symposium
Country/Territory	United States
City	Orlando
Period	16/03/08 → 20/03/08

Keywords

Bolometers
Concealed weapons detection
Cryogenic detectors
Passive mm-wave imaging
Stand-off detection
Superconducting sensors
THz imaging

Access to Document

10.1117/12.784922

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Luukanen, A., Grönberg, L., Haarnoja, T., Helistö, P., Kataja, K., Leivo, M., Rautiainen, A., Penttilä, J., Bjarnason, J. E., Dietlein, C. R., Ramirez, M. D., & Grossman, E. N. (2008). Passive THz imaging system for stand-off identification of concealed objects: Results from a turn-key 16 pixel imager. In R. Appleby (Ed.), Passive Millimeter-Wave Imaging Technology XI: SPIE Defence and Security Symposium Article 69480O International Society for Optics and Photonics SPIE. https://doi.org/10.1117/12.784922

Luukanen, A. ; Grönberg, Leif ; Haarnoja, Tuomas et al. / Passive THz imaging system for stand-off identification of concealed objects : Results from a turn-key 16 pixel imager. Passive Millimeter-Wave Imaging Technology XI: SPIE Defence and Security Symposium. editor / Roger Appleby. International Society for Optics and Photonics SPIE, 2008. (Proceedings of SPIE; No. 6948).

@inproceedings{6bbe229ebbc8443bb988902d5b5fe700,

title = "Passive THz imaging system for stand-off identification of concealed objects: Results from a turn-key 16 pixel imager",

abstract = "Passive imaging of concealed objects at stand-off distances in excess of a few meters requires both excellent spatial, thermal and temporal resolution from the terahertz imaging system. The combination of these requirements while keeping the overall system cost at a reasonable level has been the motivation for this joint work. The THz imaging system under development is capable of sub-Kelvin NETD at video frame rates. In this paper we report the first imaging results from a 16-pixel array of superconducting antenna-coupled NbN vacuum-bridge microbolometers, operated within a cryogen-free, turn-key refrigerator. In addition to the system overview, we shall also address the uniformity of the detectors and present passive indoors raster-scanned imagery.",

keywords = "Bolometers, Concealed weapons detection, Cryogenic detectors, Passive mm-wave imaging, Stand-off detection, Superconducting sensors, THz imaging",

author = "A. Luukanen and Leif Gr{\"o}nberg and Tuomas Haarnoja and Panu Helist{\"o} and K. Kataja and Mikko Leivo and Anssi Rautiainen and J. Penttil{\"a} and Bjarnason, \{J. E.\} and Dietlein, \{C. R.\} and Ramirez, \{M. D.\} and Grossman, \{E. N.\}",

year = "2008",

doi = "10.1117/12.784922",

language = "English",

isbn = " 9780819471390 ",

series = "Proceedings of SPIE",

publisher = "International Society for Optics and Photonics SPIE",

number = "6948",

editor = "Roger Appleby",

booktitle = "Passive Millimeter-Wave Imaging Technology XI",

address = "United States",

note = "SPIE Defense and Security Symposium : Passive Millimeter-Wave Imaging Technology XI ; Conference date: 16-03-2008 Through 20-03-2008",

}

Luukanen, A, Grönberg, L, Haarnoja, T, Helistö, P, Kataja, K, Leivo, M, Rautiainen, A, Penttilä, J, Bjarnason, JE, Dietlein, CR, Ramirez, MD & Grossman, EN 2008, Passive THz imaging system for stand-off identification of concealed objects: Results from a turn-key 16 pixel imager. in R Appleby (ed.), Passive Millimeter-Wave Imaging Technology XI: SPIE Defence and Security Symposium., 69480O , International Society for Optics and Photonics SPIE, Proceedings of SPIE, no. 6948, SPIE Defense and Security Symposium, Orlando, United States, 16/03/08. https://doi.org/10.1117/12.784922

Passive THz imaging system for stand-off identification of concealed objects: Results from a turn-key 16 pixel imager. / Luukanen, A.; Grönberg, Leif; Haarnoja, Tuomas et al.
Passive Millimeter-Wave Imaging Technology XI: SPIE Defence and Security Symposium. ed. / Roger Appleby. International Society for Optics and Photonics SPIE, 2008. 69480O (Proceedings of SPIE; No. 6948).

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

TY - GEN

T1 - Passive THz imaging system for stand-off identification of concealed objects

T2 - SPIE Defense and Security Symposium

AU - Luukanen, A.

AU - Grönberg, Leif

AU - Haarnoja, Tuomas

AU - Helistö, Panu

AU - Kataja, K.

AU - Leivo, Mikko

AU - Rautiainen, Anssi

AU - Penttilä, J.

AU - Bjarnason, J. E.

AU - Dietlein, C. R.

AU - Ramirez, M. D.

AU - Grossman, E. N.

PY - 2008

Y1 - 2008

N2 - Passive imaging of concealed objects at stand-off distances in excess of a few meters requires both excellent spatial, thermal and temporal resolution from the terahertz imaging system. The combination of these requirements while keeping the overall system cost at a reasonable level has been the motivation for this joint work. The THz imaging system under development is capable of sub-Kelvin NETD at video frame rates. In this paper we report the first imaging results from a 16-pixel array of superconducting antenna-coupled NbN vacuum-bridge microbolometers, operated within a cryogen-free, turn-key refrigerator. In addition to the system overview, we shall also address the uniformity of the detectors and present passive indoors raster-scanned imagery.

AB - Passive imaging of concealed objects at stand-off distances in excess of a few meters requires both excellent spatial, thermal and temporal resolution from the terahertz imaging system. The combination of these requirements while keeping the overall system cost at a reasonable level has been the motivation for this joint work. The THz imaging system under development is capable of sub-Kelvin NETD at video frame rates. In this paper we report the first imaging results from a 16-pixel array of superconducting antenna-coupled NbN vacuum-bridge microbolometers, operated within a cryogen-free, turn-key refrigerator. In addition to the system overview, we shall also address the uniformity of the detectors and present passive indoors raster-scanned imagery.

KW - Bolometers

KW - Concealed weapons detection

KW - Cryogenic detectors

KW - Passive mm-wave imaging

KW - Stand-off detection

KW - Superconducting sensors

KW - THz imaging

U2 - 10.1117/12.784922

DO - 10.1117/12.784922

M3 - Conference article in proceedings

SN - 9780819471390

T3 - Proceedings of SPIE

BT - Passive Millimeter-Wave Imaging Technology XI

A2 - Appleby, Roger

PB - International Society for Optics and Photonics SPIE

Y2 - 16 March 2008 through 20 March 2008

ER -

Luukanen A, Grönberg L, Haarnoja T, Helistö P, Kataja K, Leivo M et al. Passive THz imaging system for stand-off identification of concealed objects: Results from a turn-key 16 pixel imager. In Appleby R, editor, Passive Millimeter-Wave Imaging Technology XI: SPIE Defence and Security Symposium. International Society for Optics and Photonics SPIE. 2008. 69480O . (Proceedings of SPIE; No. 6948). doi: 10.1117/12.784922

Passive THz imaging system for stand-off identification of concealed objects: Results from a turn-key 16 pixel imager

Abstract

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Keywords

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