基于平顶光束的 SERF 原子磁强计的性能优化

IF 1.5 4区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Chinese Physics B Pub Date : 2024-04-18 DOI:10.1088/1674-1056/ad401b

Ziqi Yuan, Junjian Tang, Shudong Lin, Y. Zhai

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引用次数: 0

摘要

在这项研究中，我们探讨了不同横向强度剖面的泵浦光束对无自旋交换弛豫（SERF）原子磁强计（AM）性能的影响。我们在实验中比较了传统的高斯光学泵浦 AM 和利用平顶光学泵浦（FTOP）方法的 AM。我们的研究结果表明，基于 FTOP 的方法优于传统方法，其响应更大、磁共振线宽更窄、低频噪声性能更优。具体来说，使用 FTOP 方法后，1-30 Hz 频率范围内的平均灵敏度提高了 16%。我们的研究强调了在 AM 中实现横向极化均匀性的重要性，为未来的优化工作和微型磁强计灵敏度的提高提供了启示。

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

In this study, 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 Gaussian 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% enhancement in average sensitivity within 1-30 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.

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来源期刊

Chinese Physics B 物理-物理：综合

CiteScore

2.80

自引率

23.50%

发文量

15667

审稿时长

2.4 months

期刊介绍： Chinese Physics B is an international journal covering the latest developments and achievements in all branches of physics worldwide (with the exception of nuclear physics and physics of elementary particles and fields, which is covered by Chinese Physics C). It publishes original research papers and rapid communications reflecting creative and innovative achievements across the field of physics, as well as review articles covering important accomplishments in the frontiers of physics. Subject coverage includes: Condensed matter physics and the physics of materials Atomic, molecular and optical physics Statistical, nonlinear and soft matter physics Plasma physics Interdisciplinary physics.