Nanotesla sensitivity magnetic field sensing using a compact diamond nitrogen-vacancy magnetometer

DOI PDF 被引用文献6件
  • James L. Webb
    Center for Macroscopic Quantum States (bigQ), Department of Physics, Technical University of Denmark , Fysikvej 309, 2800 Kgs. Lyngby, Denmark
  • Joshua D. Clement
    Center for Macroscopic Quantum States (bigQ), Department of Physics, Technical University of Denmark , Fysikvej 309, 2800 Kgs. Lyngby, Denmark
  • Luca Troise
    Center for Macroscopic Quantum States (bigQ), Department of Physics, Technical University of Denmark , Fysikvej 309, 2800 Kgs. Lyngby, Denmark
  • Sepehr Ahmadi
    Center for Macroscopic Quantum States (bigQ), Department of Physics, Technical University of Denmark , Fysikvej 309, 2800 Kgs. Lyngby, Denmark
  • Gustav Juhl Johansen
    Center for Macroscopic Quantum States (bigQ), Department of Physics, Technical University of Denmark , Fysikvej 309, 2800 Kgs. Lyngby, Denmark
  • Alexander Huck
    Center for Macroscopic Quantum States (bigQ), Department of Physics, Technical University of Denmark , Fysikvej 309, 2800 Kgs. Lyngby, Denmark
  • Ulrik L. Andersen
    Center for Macroscopic Quantum States (bigQ), Department of Physics, Technical University of Denmark , Fysikvej 309, 2800 Kgs. Lyngby, Denmark

書誌事項

公開日
2019-06-10
権利情報
  • https://creativecommons.org/licenses/by/4.0/
  • https://creativecommons.org/licenses/by/4.0/
DOI
  • 10.1063/1.5095241
公開者
AIP Publishing

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説明

<jats:p>Solid state sensors utilizing diamond nitrogen-vacancy (NV) centers are a promising sensing platform that can provide high sensitivity and spatial resolution at high precision. Such sensors have been realized in bulky laboratory-based forms; however, practical applications demand a miniaturized, portable sensor that can function in a wide range of environmental conditions. Here, we demonstrate such a diamond NV magnetic field sensor. The sensor head fits inside a 11×7×7 cm3 3D-printed box and exhibits sub-10 nT/Hz sensitivity over a 125 Hz bandwidth. We achieve efficient fluorescence collection using an optical filter and diode in contact with the diamond, which is cut at the Brewster angle to maximize the coupling of 532 nm pump light. We discuss the potential of this flexible approach to achieve sub-nT/Hz shot noise limited sensitivity suitable for detection of a wide range of low-level magnetic fields, particularly those from electrical power systems and from biological sources.</jats:p>

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