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arXiv · 1710.04342

Magnetometry using fluorescence of sodium vapor

Tingwei Fan·Lei Zhang·Xuezong Yang·Shuzhen Cui·Tianhua Zhou·Yan Feng
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Abstract

Magnetic resonance of sodium fluorescence is studied with varying laser intensity, duty cycle, and field strength. A magnetometer based on sodium vapor cell filled with He buffer gas is demonstrated, which uses a single amplitude-modulated laser beam. With a 589 nm laser tuned at D1 or D2 line, the magnetic field is inferred from the variation of fluorescence. A magnetic field sensitivity of 150 pT per Hz square root is achieved at D1 line. The work is a step towards sensitive remote magnetometry with mesospheric sodium.

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Tingwei Fan, Lei Zhang, Xuezong Yang, Shuzhen Cui, Tianhua Zhou, Yan Feng. 2017-10-12. Magnetometry using fluorescence of sodium vapor. https://doi.org/10.1364/ol.43.000001

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