Integrated NV (nitrogen vacancy) real-time vector magnetometer with high sensitivity and wide dynamic range
In this paper, we present a real-time vector magnetic field tracking method based on nitrogen vacancy (NV) centers magnetic detection technique. By combining optical detection magnetic resonance (ODMR) spectroscopy with multi-channel microwave frequency modulation (FM) technology, magnetic field information for each NV axis is extracted from the fluorescence signals captured by a single photodetector (PD), followed by real-time demodulation. The real-time vector magnetic field tracking method is more than 28 times faster than the frequency hopping method. Subsequently, multi-channel feedback control is introduced to track the resonance frequency of each NV axis in real-time, enabling real-time vector tracking measurements. The experimental results show that the dynamic range of the AC magnetic field is ±148.8 µT for the X, ± 151.2 µT for the Y, and ±152.5 µT for the Z. The sensitivities are 0.93nT/Hz, 0.76nT/Hz, 0.54nT/Hz respectively, which further validated the feasibility of the method. The method has potential applications in space exploration, medical diagnosis, navigation and other fields.
Authors
- Yingjie Yang (ORCID: https://orcid.org/0000-0002-1105-3824)
- Jun Tang (ORCID: https://orcid.org/0000-0002-5038-2241)
- Huan Fei Wen (ORCID: https://orcid.org/0000-0002-2972-9669)
- Yasuhiro Sugawara (ORCID: https://orcid.org/0000-0002-1233-5313)
- Yang Li (ORCID: https://orcid.org/0000-0001-9371-9978)
- Hao Guo (ORCID: https://orcid.org/0000-0002-6936-0026)
- Yijie Liu (ORCID: https://orcid.org/0009-0007-3959-8993)
- Zhonghao Li (ORCID: https://orcid.org/0000-0002-7164-3447)
- Zongmin Ma (ORCID: https://orcid.org/0000-0002-7839-6450)
- Doudou Zheng (ORCID: https://orcid.org/0000-0001-6751-4653)
- Yanjun Li (ORCID: https://orcid.org/0000-0003-3010-0005)
- Qingli Zhang (ORCID: https://orcid.org/0000-0002-2792-5009)
- Jianghao Fu
- Xuanhui Ren (ORCID: https://orcid.org/0009-0004-3792-823X)
- Chenyu Hou (ORCID: https://orcid.org/0009-0006-2694-5848)
Institutions
- North University of China (CN)
- Taiyuan Institute of Technology (CN)
- The University of Osaka (JP)
Publication Details
- Journal
- Optics Express
- Published
- 2025-05-06
- DOI
- https://doi.org/10.1364/oe.548080
- Citations
- 2
- Primary Topic
- Diamond and Carbon-based Materials Research
- Type
- article
- Field-Weighted Citation Impact
- 1.04
Funders
- International Science and Technology Cooperation Program of Shanxi Province
- International Cooperation and Exchange Programme
- National Key Research and Development Program of China