Ultrasensitive proximity Josephson sensor with kinetic inductance readout

F. Giazotto (Corresponding Author), T. T. Heikkilä, G. P. Pepe, Panu Helistö, A. Luukanen, J. P. Pekola

Research output: Contribution to journalArticleScientificpeer-review

41 Citations (Scopus)

Abstract

We propose a mesoscopic kinetic-inductance radiation detector based on a long superconductor-normal metal-superconductor Josephson junction. The operation of this proximity Josephson sensor relies on large kinetic inductance variations under irradiation due to the exponential temperature dependence of the critical current. Coupled with a dc superconducting quantum interference device readout, the PJS is able to provide a signal to noise (S/N) ratio up to ∼103 in the terahertz regime if operated as calorimeter, while electrical noise equivalent power as low as ∼7×10−20W/√Hz at 200 mK can be achieved in the bolometer operation. The high performance together with the ease of fabrication make this structure attractive as an ultrasensitive cryogenic detector of terahertz electromagnetic radiation.
Original languageEnglish
Article number162507
JournalApplied Physics Letters
Volume92
Issue number16
DOIs
Publication statusPublished - 2008
MoE publication typeA1 Journal article-refereed

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inductance
readout
proximity
radiation detectors
sensors
kinetics
bolometers
Josephson junctions
cryogenics
calorimeters
critical current
electromagnetic radiation
signal to noise ratios
interference
temperature dependence
fabrication
irradiation
detectors
metals

Keywords

  • critical currents
  • Josephson effect
  • radiation detection
  • SQUIDs
  • superconductor-normal-superconductor devices

Cite this

Giazotto, F., Heikkilä, T. T., Pepe, G. P., Helistö, P., Luukanen, A., & Pekola, J. P. (2008). Ultrasensitive proximity Josephson sensor with kinetic inductance readout. Applied Physics Letters, 92(16), [162507]. https://doi.org/10.1063/1.2908922
Giazotto, F. ; Heikkilä, T. T. ; Pepe, G. P. ; Helistö, Panu ; Luukanen, A. ; Pekola, J. P. / Ultrasensitive proximity Josephson sensor with kinetic inductance readout. In: Applied Physics Letters. 2008 ; Vol. 92, No. 16.
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abstract = "We propose a mesoscopic kinetic-inductance radiation detector based on a long superconductor-normal metal-superconductor Josephson junction. The operation of this proximity Josephson sensor relies on large kinetic inductance variations under irradiation due to the exponential temperature dependence of the critical current. Coupled with a dc superconducting quantum interference device readout, the PJS is able to provide a signal to noise (S/N) ratio up to ∼103 in the terahertz regime if operated as calorimeter, while electrical noise equivalent power as low as ∼7×10−20W/√Hz at 200 mK can be achieved in the bolometer operation. The high performance together with the ease of fabrication make this structure attractive as an ultrasensitive cryogenic detector of terahertz electromagnetic radiation.",
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Giazotto, F, Heikkilä, TT, Pepe, GP, Helistö, P, Luukanen, A & Pekola, JP 2008, 'Ultrasensitive proximity Josephson sensor with kinetic inductance readout', Applied Physics Letters, vol. 92, no. 16, 162507. https://doi.org/10.1063/1.2908922

Ultrasensitive proximity Josephson sensor with kinetic inductance readout. / Giazotto, F. (Corresponding Author); Heikkilä, T. T.; Pepe, G. P.; Helistö, Panu; Luukanen, A.; Pekola, J. P.

In: Applied Physics Letters, Vol. 92, No. 16, 162507, 2008.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Ultrasensitive proximity Josephson sensor with kinetic inductance readout

AU - Giazotto, F.

AU - Heikkilä, T. T.

AU - Pepe, G. P.

AU - Helistö, Panu

AU - Luukanen, A.

AU - Pekola, J. P.

PY - 2008

Y1 - 2008

N2 - We propose a mesoscopic kinetic-inductance radiation detector based on a long superconductor-normal metal-superconductor Josephson junction. The operation of this proximity Josephson sensor relies on large kinetic inductance variations under irradiation due to the exponential temperature dependence of the critical current. Coupled with a dc superconducting quantum interference device readout, the PJS is able to provide a signal to noise (S/N) ratio up to ∼103 in the terahertz regime if operated as calorimeter, while electrical noise equivalent power as low as ∼7×10−20W/√Hz at 200 mK can be achieved in the bolometer operation. The high performance together with the ease of fabrication make this structure attractive as an ultrasensitive cryogenic detector of terahertz electromagnetic radiation.

AB - We propose a mesoscopic kinetic-inductance radiation detector based on a long superconductor-normal metal-superconductor Josephson junction. The operation of this proximity Josephson sensor relies on large kinetic inductance variations under irradiation due to the exponential temperature dependence of the critical current. Coupled with a dc superconducting quantum interference device readout, the PJS is able to provide a signal to noise (S/N) ratio up to ∼103 in the terahertz regime if operated as calorimeter, while electrical noise equivalent power as low as ∼7×10−20W/√Hz at 200 mK can be achieved in the bolometer operation. The high performance together with the ease of fabrication make this structure attractive as an ultrasensitive cryogenic detector of terahertz electromagnetic radiation.

KW - critical currents

KW - Josephson effect

KW - radiation detection

KW - SQUIDs

KW - superconductor-normal-superconductor devices

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DO - 10.1063/1.2908922

M3 - Article

VL - 92

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

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