arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2603.23751physics.atom-phphysics.app-phphysics.ins-detquant-ph
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非常灵敏的蒸汽细胞准直流原子电场传感器

Very sensitive vapor-cell quasi-DC atomic E-field sensor

Sandia National Laboratories(桑迪亚国家实验室)

Amy Damitz, George Burns, Yuan-Yu Jau

AI总结:

本文提出改进蒸汽细胞原子电荷计在准直流频域性能的技术方法,实现0.2至7.7 mV/m√Hz的电场灵敏度,通过无金属部件设计提高空间分辨率和应用潜力。

摘要:

我们报告了几种显著提高蒸汽细胞原子电荷计在准直流频域(<<1 kHz)性能的技术方法。在蒸汽细胞内约11 mm³的极小活性体积中,我们展示了电场灵敏度噪声底座范围为0.2至7.7 mV/m√Hz,频率带为1-100 Hz。我们的工作仅利用裸露的蒸汽细胞进行电荷计量,不使用任何金属部件或电极,以确保测量电场的最小失真并最小化有效传感体积以实现高空间分辨率。电场敏感的原子态(里德伯态)通过光学激发和读出,最大化了系统设计的简单性,并使准直流电场传感器的微型化成为可能,适用于电子诊断无物理接触、低于超低频(SLF)频段的通信、接近检测、远程活动监控、追踪电荷特征以及生物科学和地质科学的研究。

英文摘要:

We report several technical approaches that significantly improve the performance of a vapor-cell atomic electrometer operating in the quasi-DC frequency domain ($\ll$ 1 kHz). With a very small active volume of approximately 11 mm$^3$ inside the vapor cell, we demonstrated a noise floor for electric field (E-field) sensitivity ranging from 0.2 to 7.7 mV/m$\sqrt{\rm Hz}$ for a frequency band of 1--100 Hz. Our work utilizes only a bare vapor cell for electrometry, without any metal parts or electrodes, to ensure minimal distortion of the measured E-field and to minimize the effective sensing volume for high spatial resolution. The E-field-sensitive atomic state (Rydberg state) is excited and read out optically, maximizing the simplicity of the system design and enabling the miniaturization of quasi-DC E-field sensors for potential applications, such as diagnostics of electronics without physical contact, communications in and below the super-low frequency (SLF) band, proximity detection, remote activity surveillance, tracing charge signatures, and research in bioscience and geoscience.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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