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9 March 2023 Remote all optical chip-scale magnetometry
Kfir Levi, Avital Giat, Liron Stern
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Proceedings Volume PC12447, Quantum Sensing, Imaging, and Precision Metrology; PC1244713 (2023) https://doi.org/10.1117/12.2649735
Event: SPIE Quantum West, 2023, San Francisco, California, United States
Abstract
We propose and demonstrate chip-scale based all-optical remote magnetic sensing. Specifically, we remotely interrogate mm-scale micromachined vapor cells and measure the ambient magnetic field with at a standoff distance of ~10 meters and a sensitivity of ~1 pT/√Hz. Simultaneously we are able to measure the distance between the micro-cell and the interrogating system by means of time-of-flight measurements, thus correlating between position and magnetic field. Consequently, we provide a novel toolset to remotely map arbitrary, remote and hard to access magnetic field in an unshielded environment with high sensitivity and spatial resolution.
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Kfir Levi, Avital Giat, and Liron Stern "Remote all optical chip-scale magnetometry", Proc. SPIE PC12447, Quantum Sensing, Imaging, and Precision Metrology, PC1244713 (9 March 2023); https://doi.org/10.1117/12.2649735
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KEYWORDS
Magnetism
Distance measurement
Modulation
Environmental sensing
Magnetic sensors
Magnetometers
Remote sensing
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