中国物理B ›› 2024, Vol. 33 ›› Issue (2): 24202-024202.doi: 10.1088/1674-1056/ad0772

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Design of tightly linked dual ring antenna and imaging of magnetic field distribution using a diamond fiber probe

Qing-Yun Ye(叶青云)1, Ya-Wen Xue(薛雅文)2, Fei-Yue He(何飞越)1, Xu-Tong Zhao(赵旭彤)1, Yu-Chen Bian(卞雨辰)1, Wen-Tao Lu(卢文韬)1, Jin-Xu Wang(王金旭)1, Hong-Hao Chen(陈鸿浩)1, Sheng-Kai Xia(夏圣开)3, Ming-Jing Zeng(曾明菁)4, 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 College of Science, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;
    3 School of Computer Science, Nanjing University of Posts and Telecommunications, Nanjing 210023, China;
    4 Bell Honors School, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
  • 收稿日期:2023-05-30 修回日期:2023-10-26 接受日期:2023-10-27 出版日期:2024-01-16 发布日期:2024-01-19
  • 通讯作者: Guan-Xiang Du E-mail:duguanxiang@njupt.edu.cn
  • 基金资助:
    Project supported by the National Key Research and Development Program of China (Grant No. 2021YFB2012600) and the Shanghai Aerospace Science and Technology Innovation Fund (Grant No. SAST-2022-102).

Design of tightly linked dual ring antenna and imaging of magnetic field distribution using a diamond fiber probe

Qing-Yun Ye(叶青云)1, Ya-Wen Xue(薛雅文)2, Fei-Yue He(何飞越)1, Xu-Tong Zhao(赵旭彤)1, Yu-Chen Bian(卞雨辰)1, Wen-Tao Lu(卢文韬)1, Jin-Xu Wang(王金旭)1, Hong-Hao Chen(陈鸿浩)1, Sheng-Kai Xia(夏圣开)3, Ming-Jing Zeng(曾明菁)4, 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 College of Science, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;
    3 School of Computer Science, Nanjing University of Posts and Telecommunications, Nanjing 210023, China;
    4 Bell Honors School, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
  • Received:2023-05-30 Revised:2023-10-26 Accepted:2023-10-27 Online:2024-01-16 Published:2024-01-19
  • Contact: Guan-Xiang Du E-mail:duguanxiang@njupt.edu.cn
  • Supported by:
    Project supported by the National Key Research and Development Program of China (Grant No. 2021YFB2012600) and the Shanghai Aerospace Science and Technology Innovation Fund (Grant No. SAST-2022-102).

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摘要： A tightly linked dual ring antenna is designed, and it is specifically tailored for uniformly coupling the microwave magnetic field to the nitrogen-vacancy (NV) center. The designed antenna operates at a center frequency of about 2.87 GHz, with a bandwidth of around 200 MHz, allowing it to address multiple resonance peaks in the optically detected magnetic resonance (ODMR) spectrum in an external magnetic field. Moreover, the antenna generates a fairly uniform magnetic field in a range with a radius of 0.75 mm. High resolution imaging of the magnetic field distribution on the surface of the antenna is conducted by using a fiber diamond probe. We also investigate the effect of magnetic field uniformity on the linewidth of ODMR, so as to provide insights into reducing the inhomogeneous broadening of ODMR.

关键词: nitrogen vacancy (NV), microwave (MW) imaging, inhomogeneous broadening

Abstract: A tightly linked dual ring antenna is designed, and it is specifically tailored for uniformly coupling the microwave magnetic field to the nitrogen-vacancy (NV) center. The designed antenna operates at a center frequency of about 2.87 GHz, with a bandwidth of around 200 MHz, allowing it to address multiple resonance peaks in the optically detected magnetic resonance (ODMR) spectrum in an external magnetic field. Moreover, the antenna generates a fairly uniform magnetic field in a range with a radius of 0.75 mm. High resolution imaging of the magnetic field distribution on the surface of the antenna is conducted by using a fiber diamond probe. We also investigate the effect of magnetic field uniformity on the linewidth of ODMR, so as to provide insights into reducing the inhomogeneous broadening of ODMR.

Key words: nitrogen vacancy (NV), microwave (MW) imaging, inhomogeneous broadening

中图分类号:  (Optical implementations of quantum information processing and transfer)

  • 42.50.Ex
07.55.Ge (Magnetometers for magnetic field measurements) 03.65.Yz (Decoherence; open systems; quantum statistical methods)