Low-noise readout of superconducting bolometers based on electrothermal feedback

Jari S. Penttilä (Corresponding Author), Hannu Sipola, Panu Helistö, Heikki Seppä

    Research output: Contribution to journalArticleScientificpeer-review

    33 Citations (Scopus)

    Abstract

    We have developed a simple room-temperature readout for superconducting bolometers and calorimeters. Due to electro-thermal feedback, the bolometer can be noise-matched with the readout amplifier. The constructed amplifier consists of low-noise field-effect transistors, and voltage bias is actively provided by electrical feedback. According to our measurements on superconducting vacuum-bridge bolometers, the total noise is limited by the bolometer phonon and Johnson noise characterized by a critical temperature of 8.5 K. We show that, with proper sensor design, it is possible to reach the photon noise limit in video-rate submillimetre imaging applications.
    Original languageEnglish
    Pages (from-to)319-322
    Number of pages4
    JournalSuperconductor Science and Technology
    Volume19
    Issue number4
    DOIs
    Publication statusPublished - 2006
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Bolometers
    bolometers
    low noise
    readout
    Feedback
    amplifiers
    Field effect transistors
    Bias voltage
    Calorimeters
    calorimeters
    critical temperature
    field effect transistors
    Photons
    Vacuum
    Imaging techniques
    Temperature
    vacuum
    sensors
    Sensors
    photons

    Keywords

    • superconducting bolometers
    • superconducting calorimeters
    • bolometers

    Cite this

    @article{5678fb91bc094814b5c58d3d37223112,
    title = "Low-noise readout of superconducting bolometers based on electrothermal feedback",
    abstract = "We have developed a simple room-temperature readout for superconducting bolometers and calorimeters. Due to electro-thermal feedback, the bolometer can be noise-matched with the readout amplifier. The constructed amplifier consists of low-noise field-effect transistors, and voltage bias is actively provided by electrical feedback. According to our measurements on superconducting vacuum-bridge bolometers, the total noise is limited by the bolometer phonon and Johnson noise characterized by a critical temperature of 8.5 K. We show that, with proper sensor design, it is possible to reach the photon noise limit in video-rate submillimetre imaging applications.",
    keywords = "superconducting bolometers, superconducting calorimeters, bolometers",
    author = "Penttil{\"a}, {Jari S.} and Hannu Sipola and Panu Helist{\"o} and Heikki Sepp{\"a}",
    year = "2006",
    doi = "10.1088/0953-2048/19/4/013",
    language = "English",
    volume = "19",
    pages = "319--322",
    journal = "Superconductor Science and Technology",
    issn = "0953-2048",
    publisher = "Institute of Physics IOP",
    number = "4",

    }

    Low-noise readout of superconducting bolometers based on electrothermal feedback. / Penttilä, Jari S. (Corresponding Author); Sipola, Hannu; Helistö, Panu; Seppä, Heikki.

    In: Superconductor Science and Technology, Vol. 19, No. 4, 2006, p. 319-322.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Low-noise readout of superconducting bolometers based on electrothermal feedback

    AU - Penttilä, Jari S.

    AU - Sipola, Hannu

    AU - Helistö, Panu

    AU - Seppä, Heikki

    PY - 2006

    Y1 - 2006

    N2 - We have developed a simple room-temperature readout for superconducting bolometers and calorimeters. Due to electro-thermal feedback, the bolometer can be noise-matched with the readout amplifier. The constructed amplifier consists of low-noise field-effect transistors, and voltage bias is actively provided by electrical feedback. According to our measurements on superconducting vacuum-bridge bolometers, the total noise is limited by the bolometer phonon and Johnson noise characterized by a critical temperature of 8.5 K. We show that, with proper sensor design, it is possible to reach the photon noise limit in video-rate submillimetre imaging applications.

    AB - We have developed a simple room-temperature readout for superconducting bolometers and calorimeters. Due to electro-thermal feedback, the bolometer can be noise-matched with the readout amplifier. The constructed amplifier consists of low-noise field-effect transistors, and voltage bias is actively provided by electrical feedback. According to our measurements on superconducting vacuum-bridge bolometers, the total noise is limited by the bolometer phonon and Johnson noise characterized by a critical temperature of 8.5 K. We show that, with proper sensor design, it is possible to reach the photon noise limit in video-rate submillimetre imaging applications.

    KW - superconducting bolometers

    KW - superconducting calorimeters

    KW - bolometers

    U2 - 10.1088/0953-2048/19/4/013

    DO - 10.1088/0953-2048/19/4/013

    M3 - Article

    VL - 19

    SP - 319

    EP - 322

    JO - Superconductor Science and Technology

    JF - Superconductor Science and Technology

    SN - 0953-2048

    IS - 4

    ER -