Performance optimization of a SERF atomic magnetometer based on flat-top light beam

袁子琪 ¹唐钧剑 ²林树东 ¹翟跃阳³

扫码查看

作者信息

1. Key Laboratory of Ultra-Weak Magnetic Field Measurement Technology,Ministry of Education,School of Instrumentation and Optoelectronic Engineering,Beihang University,Beijing 100191,China
2. Key Laboratory of Ultra-Weak Magnetic Field Measurement Technology,Ministry of Education,School of Instrumentation and Optoelectronic Engineering,Beihang University,Beijing 100191,China;School of Physics,Beihang University,Beijing 100191,China
3. Key Laboratory of Ultra-Weak Magnetic Field Measurement Technology,Ministry of Education,School of Instrumentation and Optoelectronic Engineering,Beihang University,Beijing 100191,China;School of Physics,Beihang University,Beijing 100191,China;Hefei National Laboratory,Hefei 230088,China
折叠

Abstract

We explore the impact of pumping beams with different transverse intensity profiles on the performance of the spin-exchange relaxation-free(SERF)atomic magnetometers(AMs).We conduct experiments comparing the traditional Gaus-sian optically-pumped AM with that utilizing the flat-top optically-pumped(FTOP)method.Our findings reveal that the FTOP-based approach outperforms the conventional method,exhibiting a larger response,a narrower magnetic resonance linewidth,and a superior low-frequency noise performance.Specifically,the use of FTOP method leads to a 16％enhance-ment in average sensitivity within 1 Hz-30 Hz frequency range.Our research emphasizes the significance of achieving transverse polarization uniformity in AMs,providing insights for future optimization efforts and sensitivity improvements in miniaturized magnetometers.

Key words

atomic magnetometer(AM)/spin-exchange relaxation-free(SERF)/flat-top light beam/perfor-mance optimization

引用本文复制引用

基金项目

国家自然科学基金(62303029)

中国博士后科学基金(2022M720364)

Innovation Program for Quantum Science and Technology(2021ZD0300500)

Innovation Program for Quantum Science and Technology(2021ZD0300503)

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35

段落导航