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

叶青云 ¹薛雅文 ²何飞越 ¹赵旭彤 ¹卞雨辰 ¹卢文韬 ¹王金旭 ¹陈鸿浩 ¹夏圣开 ³曾明菁 ⁴杜关祥¹

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作者信息

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
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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

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基金项目

National Key Research and Development Program of China(2021YFB2012600)

Shanghai Aerospace Science and Technology Innovation Fund(SAST-2022-102)

出版年

2024

中国物理B(英文版)

中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI

影响因子：0.995

ISSN：1674-1056

参考文献量28

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