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arXiv · 2508.13869

Microscopic magnetic field imaging with hot atoms via single-pixel imaging

Cyril Torre·Jordan Brass·Sebastien Bisdee·Mohammed T. Rasheed·Giacomo Ferranti·Carrie A. Weidner
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Abstract

In recent years, sensors based on hot atomic vapor cells have emerged as a compact and highly sensitive means of measuring magnetic fields. Such sensors have been deployed in the field for the measurement of, e.g. biological systems, representing a promising practical application of quantum technologies. However, it remains challenging to obtain high-resolution magnetic field images from these sensors, and in most cases the spatial resolution of the system is limited by the sensor size. Here, we demonstrate the combination of single-pixel imaging (SPI) techniques with an atom vapor. Faraday magnetometer to achieve microscopic magnetic field imaging. We demonstrate magnetic field imaging with a spatial resolution of $\approx~62.5\mu m$, limited only by the resolution of our DMD projection system and the absence of magnetic shielding in our experimental setup.

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Cyril Torre, Jordan Brass, Sebastien Bisdee, Mohammed T. Rasheed, Giacomo Ferranti, Carrie A. Weidner. 2025-08-19. Microscopic magnetic field imaging with hot atoms via single-pixel imaging. https://arxiv.org/abs/2508.13869

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