Vector magnetometry using perfectly aligned nitrogen-vacancy center ensemble in diamond

DOI PDF 被引用文献8件 参考文献29件
  • Moeta Tsukamoto
    Department of Physics, The University of Tokyo 1 , Bunkyo-ku, Tokyo 113-0033, Japan
  • Kensuke Ogawa
    Department of Physics, The University of Tokyo 1 , Bunkyo-ku, Tokyo 113-0033, Japan
  • Hayato Ozawa
    Department of Physical Electronics, Tokyo Institute of Technology 2 , Meguro, Tokyo 152-8552, Japan
  • Takayuki Iwasaki
    Department of Physical Electronics, Tokyo Institute of Technology 2 , Meguro, Tokyo 152-8552, Japan
  • Mutsuko Hatano
    Department of Physical Electronics, Tokyo Institute of Technology 2 , Meguro, Tokyo 152-8552, Japan
  • Kento Sasaki
    Department of Physics, The University of Tokyo 1 , Bunkyo-ku, Tokyo 113-0033, Japan
  • Kensuke Kobayashi
    Department of Physics, The University of Tokyo 1 , Bunkyo-ku, Tokyo 113-0033, Japan

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<jats:p>We demonstrate vector magnetometry using ensemble of the nitrogen-vacancy (NV) centers in diamond that are perfectly aligned along the [111] direction. By changing the direction and strength of the reference magnetic field, we perform three-dimensional vector measurement of the Oersted field generated by the current flowing in a nearby wire. We had a formula for evaluating the magnetic field sensitivity in the direction perpendicular to the NV axis. We demonstrate that the expected sensitivity is 1.2 times higher than that of the NV ensemble isotropically oriented on four equivalent crystal axes. Our precise method is suitable for time-varying magnetic signals.</jats:p>

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