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Broadband microwave detection using electron spins in a hybrid diamond-magnet sensor chip

Author

Listed:
  • Joris J. Carmiggelt

    (Delft University of Technology)

  • Iacopo Bertelli

    (Delft University of Technology)

  • Roland W. Mulder

    (Delft University of Technology)

  • Annick Teepe

    (Delft University of Technology)

  • Mehrdad Elyasi

    (Tohoku University)

  • Brecht G. Simon

    (Delft University of Technology)

  • Gerrit E. W. Bauer

    (Delft University of Technology
    Tohoku University)

  • Yaroslav M. Blanter

    (Delft University of Technology)

  • Toeno Sar

    (Delft University of Technology)

Abstract

Quantum sensing has developed into a main branch of quantum science and technology. It aims at measuring physical quantities with high resolution, sensitivity, and dynamic range. Electron spins in diamond are powerful magnetic field sensors, but their sensitivity in the microwave regime is limited to a narrow band around their resonance frequency. Here, we realize broadband microwave detection using spins in diamond interfaced with a thin-film magnet. A pump field locally converts target microwave signals to the sensor-spin frequency via the non-linear spin-wave dynamics of the magnet. Two complementary conversion protocols enable sensing and high-fidelity spin control over a gigahertz bandwidth, allowing characterization of the spin-wave band at multiple gigahertz above the sensor-spin frequency. The pump-tunable, hybrid diamond-magnet sensor chip opens the way for spin-based gigahertz material characterizations at small magnetic bias fields.

Suggested Citation

  • Joris J. Carmiggelt & Iacopo Bertelli & Roland W. Mulder & Annick Teepe & Mehrdad Elyasi & Brecht G. Simon & Gerrit E. W. Bauer & Yaroslav M. Blanter & Toeno Sar, 2023. "Broadband microwave detection using electron spins in a hybrid diamond-magnet sensor chip," Nature Communications, Nature, vol. 14(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-36146-3
    DOI: 10.1038/s41467-023-36146-3
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    References listed on IDEAS

    as
    1. Jonas Meinel & Vadim Vorobyov & Boris Yavkin & Durga Dasari & Hitoshi Sumiya & Shinobu Onoda & Junichi Isoya & Jörg Wrachtrup, 2021. "Heterodyne sensing of microwaves with a quantum sensor," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    2. T. Joas & A. M. Waeber & G. Braunbeck & F. Reinhard, 2017. "Quantum sensing of weak radio-frequency signals by pulsed Mollow absorption spectroscopy," Nature Communications, Nature, vol. 8(1), pages 1-6, December.
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