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

    42 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

    Fingerprint

    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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    title = "Ultrasensitive proximity Josephson sensor with kinetic inductance readout",
    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.",
    keywords = "critical currents, Josephson effect, radiation detection, SQUIDs, superconductor-normal-superconductor devices",
    author = "F. Giazotto and Heikkil{\"a}, {T. T.} and Pepe, {G. P.} and Panu Helist{\"o} and A. Luukanen and Pekola, {J. P.}",
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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

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    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.

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    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.

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    KW - Josephson effect

    KW - radiation detection

    KW - SQUIDs

    KW - superconductor-normal-superconductor devices

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    DO - 10.1063/1.2908922

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    JO - Applied Physics Letters

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