中国物理B ›› 2024, Vol. 33 ›› Issue (12): 120305-120305.doi: 10.1088/1674-1056/ad7e9b

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Micron-resolved quantum precision measurement of magnetic field at the Tesla level

Si-Han An(安思瀚)1, Shi-Yu Ge(葛仕宇)1, Wen-Tao Lu(卢文韬)2, Guo-Bin Chen(陈国彬)3, Sheng-Kai Xia(夏圣开)4, Ai-Qing Chen(陈爱庆)1, Cheng-Kun Wang(王成坤)1, Lin-Yan Yu(虞林嫣)1, Zhi-Qiang Zhang(张致强)1, Yang Wang(汪洋)5, Gui-Jin Tang(唐贵进)1, Hua-Fu Cheng(程华富)6, and Guan-Xiang Du(杜关祥)1,†   

  1. 1 College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;
    2 Portland Institute, Nanjing University of Posts and Telecommunications, Nanjing 210023, China;
    3 The School of Mechanical and Electrical Engineering, Suqian College, Suqian 223800, China;
    4 School of Computer Science, Nanjing University of Posts and Telecommunications, Nanjing 210023, China;
    5 School of Science, Nanjing University of Posts and Telecommunications, Nanjing 210023, China;
    6 Yichang Testing Technique R&D Institute, Yichang 443003, China
  • 收稿日期:2024-07-29 修回日期:2024-09-20 接受日期:2024-09-24 发布日期:2024-11-12
  • 通讯作者: Guan-Xiang Du E-mail:duguanxiang@njupt.edu.cn
  • 基金资助:
    Project supported by the National Key R&D Program of China (Grant No. 2021YFB2012600).

Micron-resolved quantum precision measurement of magnetic field at the Tesla level

Si-Han An(安思瀚)1, Shi-Yu Ge(葛仕宇)1, Wen-Tao Lu(卢文韬)2, Guo-Bin Chen(陈国彬)3, Sheng-Kai Xia(夏圣开)4, Ai-Qing Chen(陈爱庆)1, Cheng-Kun Wang(王成坤)1, Lin-Yan Yu(虞林嫣)1, Zhi-Qiang Zhang(张致强)1, Yang Wang(汪洋)5, Gui-Jin Tang(唐贵进)1, Hua-Fu Cheng(程华富)6, and Guan-Xiang Du(杜关祥)1,†   

  1. 1 College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;
    2 Portland Institute, Nanjing University of Posts and Telecommunications, Nanjing 210023, China;
    3 The School of Mechanical and Electrical Engineering, Suqian College, Suqian 223800, China;
    4 School of Computer Science, Nanjing University of Posts and Telecommunications, Nanjing 210023, China;
    5 School of Science, Nanjing University of Posts and Telecommunications, Nanjing 210023, China;
    6 Yichang Testing Technique R&D Institute, Yichang 443003, China
  • Received:2024-07-29 Revised:2024-09-20 Accepted:2024-09-24 Published:2024-11-12
  • Contact: Guan-Xiang Du E-mail:duguanxiang@njupt.edu.cn
  • Supported by:
    Project supported by the National Key R&D Program of China (Grant No. 2021YFB2012600).

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摘要： We develop a quantum precision measurement method for magnetic field at the Tesla level by utilizing a fiber diamond magnetometer. Central to our system is a micron-sized fiber diamond probe positioned on the surface of a coplanar waveguide made of nonmagnetic materials. Calibrated with a nuclear magnetic resonance magnetometer, this probe demonstrates a broad magnetic field range from 10 mT to 1.5 T with a nonlinear error better than 0.0028% under a standard magnetic field generator and stability better than 0.0012% at a 1.5 T magnetic field. Finally, we demonstrate quantitative mapping of the vector magnetic field on the surface of a permanent magnet using the diamond magnetometer.

关键词: nitrogen-vacancy center, fiber diamond magnetometer, precision measurement

Abstract: We develop a quantum precision measurement method for magnetic field at the Tesla level by utilizing a fiber diamond magnetometer. Central to our system is a micron-sized fiber diamond probe positioned on the surface of a coplanar waveguide made of nonmagnetic materials. Calibrated with a nuclear magnetic resonance magnetometer, this probe demonstrates a broad magnetic field range from 10 mT to 1.5 T with a nonlinear error better than 0.0028% under a standard magnetic field generator and stability better than 0.0012% at a 1.5 T magnetic field. Finally, we demonstrate quantitative mapping of the vector magnetic field on the surface of a permanent magnet using the diamond magnetometer.

Key words: nitrogen-vacancy center, fiber diamond magnetometer, precision measurement

中图分类号:  (Quantum information)

  • 03.67.-a
03.65.Yz (Decoherence; open systems; quantum statistical methods) 75.50.Ww (Permanent magnets)