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

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

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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.

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

袁子琪、唐钧剑、林树东、翟跃阳

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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

国家自然科学基金中国博士后科学基金Innovation Program for Quantum Science and TechnologyInnovation Program for Quantum Science and Technology

623030292022M7203642021ZD03005002021ZD0300503

2024

10.1088/1674-1056/ad401b

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
年,卷(期)：2024.33(6)
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