文献类型：期刊文献

中文题名：SNR enhancement of magnetic fields measurement with the diamond NV center using a compound filter system

英文题名：SNR enhancement of magnetic fields measurement with the diamond NV center using a compound filter system

作者：Ye, An[1];Fu, Dingyuan[1];Wu, Mingming[1];Guo, Jiahao[1];Sheng, Tianze[1];Li, Xiaolin[1];Gong, Shangqing[1,2,3];Niu, Yueping[1,2,3]

机构：[1]East China Univ Sci & Technol, Sch Phys, Shanghai 200237, Peoples R China;[2]Shanghai Engn Res Ctr Hierarch Nanomat, Shanghai 200237, Peoples R China;[3]Shanghai Frontiers Sci Ctr Optogenet Techn Cell M, Shanghai 200237, Peoples R China

年份：2023

卷号：21

期号：11

中文期刊名：Chinese Optics Letters

外文期刊名：CHINESE OPTICS LETTERS

收录：CSTPCD;;EI(收录号：20235115233293);Scopus;WOS:【SCI-EXPANDED(收录号:WOS:001155714700012)】；CSCD:【CSCD2023_2024】；PubMed;

基金：This work was supported by the National Natural Science Foundation of China (Nos. 61835013, 12034007, 11874146, and 12274123) and Natural Science Foundation of Shanghai (No. 20ZR1414300).

语种：英文

中文关键词：nitrogen-vacancy center;quantum sensing;signal processing

外文关键词：nitrogen-vacancy center; quantum sensing; signal processing

摘要：Nitrogen-vacancy(NV)centers in diamond are progressively favored for room-temperature magnetic field measurement.The signal to noise ratio(SNR)optimization for NV diamond magnetometry generally concentrates on signal amplitude enhancement rather than efficient noise processing.Here,we report a compound filter system combining a wavelet denoising method and an adaptive filter for the realization of an efficient weak magnetic measurement with a high SNR.It allows enhanced magnetic field measurement with an average SNR enhancement of 17.80 dB at 50 nT within 500 mHz to 100 Hz and14.76 dB at 500 mHz within 50 n T to 1100 n T.The introduction of this system in NV diamond magnetometry is aimed to improve signal quality by effectively eliminating the noise and retaining ideal signals.
Nitrogen-vacancy (NV) centers in diamond are progressively favored for room-temperature magnetic field measurement. The signal to noise ratio (SNR) optimization for NV diamond magnetometry generally concentrates on signal amplitude enhancement rather than efficient noise processing. Here, we report a compound filter system combining a wavelet denoising method and an adaptive filter for the realization of an efficient weak magnetic measurement with a high SNR. It allows enhanced magnetic field measurement with an average SNR enhancement of 17.80 dB at 50 nT within 500 mHz to 100 Hz and 14.76 dB at 500 mHz within 50 nT to 1100 nT. The introduction of this system in NV diamond magnetometry is aimed to improve signal quality by effectively eliminating the noise and retaining ideal signals.