基于集成NV色心的微位移测量精度提升方法研究

Research on Micro-Displacement Measurement Accuracy Enhancement Method Based on Ensemble NV Color Center.

作者信息

Liu Yuqi, Li Zhonghao, Zhang Hao, Guo Hao, Shi Ziyang, Ma Zongmin

机构信息

Key Laboratory of Instrument Science and Dynamic Testing Ministry of Education, North University of China, Taiyuan 030051, China.

Key Lab of Quantum Sensing and Precision Measurement, Taiyuan 030051, China.

出版信息

Micromachines (Basel). 2023 Apr 26;14(5):938. doi: 10.3390/mi14050938.

DOI:10.3390/mi14050938

PMID:37241561

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10220929/

Abstract

This paper builds a corresponding micro-displacement test system based on an ensemble nitrogen-vacancy (NV) color center magnetometer by combining the correlation between a magnetic flux concentrator, a permanent magnet, and micro-displacement. By comparing the measurement results obtained with and without the magnetic flux concentrator, it can be seen that the resolution of the system under the magnetic flux concentrator can reach 25 nm, which is 24 times higher than without the magnetic flux concentrator. The effectiveness of the method is proven. The above results provide a practical reference for high-precision micro-displacement detection based on the diamond ensemble.

摘要

本文结合磁通集中器、永磁体与微位移之间的相关性，基于集成氮空位（NV）色心磁力计构建了相应的微位移测试系统。通过比较有无磁通集中器时获得的测量结果，可以看出，在磁通集中器作用下系统的分辨率可达25 nm，比没有磁通集中器时提高了24倍。该方法的有效性得到了验证。上述结果为基于金刚石集成体的高精度微位移检测提供了实际参考。