Rapid, accurate imaging of magnetic fields with Yb atomic fluorescence

Leo W. Hollberg; Tina Na Narong; Hongquan Li; Joshua Tong; Mario Duenas

doi:10.1117/12.2657718

9 March 2023 Rapid, accurate imaging of magnetic fields with Yb atomic fluorescence

Leo W. Hollberg, Tina Na Narong, Hongquan Li, Joshua Tong, Mario Duenas

Proceedings Volume PC12447, Quantum Sensing, Imaging, and Precision Metrology; PC124472Q (2023) https://doi.org/10.1117/12.2657718
Event: SPIE Quantum West, 2023, San Francisco, California, United States

Abstract

We describe a fast imaging atomic vector magnetometer based on laser spectroscopy of the Zeeman splitting in the (6s6p) 3P1 state of Yb. In the presence of a magnetic field gradient, we observed prominent dark stripes (visible by eye or camera) in the fluorescence (556 nm) when a thermal Yb atomic beam is driven by square-wave amplitude-modulated light at RF frequencies. The 1S0-3P1 transition forms a “V” system where two laser sidebands interact simultaneously with two 3P1 Zeeman sublevels. The dark lines are contours of constant magnetic field strength, and are consistent with theoretical models dominated by Autler-Townes Splitting. The estimated magnetic field sensitivity is ≈ 10 μG (1 nT) for 100k image pixels recorded in 3 ms.

Conference Presentation

Citation Download Citation

Leo W. Hollberg, Tina Na Narong, Hongquan Li, Joshua Tong, and Mario Duenas "Rapid, accurate imaging of magnetic fields with Yb atomic fluorescence", Proc. SPIE PC12447, Quantum Sensing, Imaging, and Precision Metrology, PC124472Q (9 March 2023); https://doi.org/10.1117/12.2657718

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