空间对称破缺原子磁强计。

IF 3.3 2区物理与天体物理 Q2 OPTICS

Optics express Pub Date : 2025-09-08 DOI:10.1364/OE.568742

Sanghyun Park, Min-Hwan Lee, Hyogi Kim, Jihyeong Ju, Sanglok Lee, Jaeuk Baek, Heung-Ryoul Noh, Geol Moon

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引用次数: 0

摘要

我们报道了一种利用由外部弱磁场诱导的四波混频（FWM）过程的空间对称破缺（SSB）特性的原子磁传感器。在铷蒸汽电池中，利用反传播偏振选择FWM信号获得了零磁场中心周围的色散信号。SSB磁强计在-5 μT ~ 5 μT范围内具有线性响应，在10 Hz时磁灵敏度约为10 pT/Hz，带宽在18.25 kHz范围内。这种方法将打开多种应用，从生物磁传感到地球磁场测绘，作为一个强大的原子磁传感器。

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Spatial symmetry-broken atomic magnetometry.

We report an atomic magnetic sensor that leverages the spatial symmetry-broken (SSB) properties of the four-wave mixing (FWM) process induced by an external weak magnetic field. The dispersive signals around the center of zero magnetic field are obtained from counterpropagating polarization-selective FWM signals in a rubidium vapor cell. The SSB magnetometer has a linear response within -5 μT to 5 μT, and the magnetic sensitivity is about 10 pT/Hz at 10 Hz, and the bandwidth is in the range of 18.25 kHz. This method would open diverse applications ranging from biomagnetic sensing to Earth's magnetic field mapping as a robust atomic magnetic sensor.

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来源期刊

Optics express 物理-光学

CiteScore

6.60

自引率

15.80%

发文量

5182

审稿时长

2.1 months

期刊介绍： Optics Express is the all-electronic, open access journal for optics providing rapid publication for peer-reviewed articles that emphasize scientific and technology innovations in all aspects of optics and photonics.