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arXiv · 2603.10898

Calibration of electric fields in low-frequency off-resonant Rydberg receivers

Baran Kayim·Michael A. Viray·David S. La Mantia·Daniel Richardson·James Dee·Ryan S. Westafer·Brian C. Sawyer·Robert Wyllie
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Abstract

We present results on Rydberg atom-based electric field sensing in the range of 1 kHz - 300 MHz, using a three-photon Rydberg excitation scheme and a transverse electromagnetic (TEM) line waveguide to apply low-frequency rf fields to the cell. Measurements of low-frequency screening in quartz and sapphire vapor cells show excellent agreement with a phenomenological model of the effective vapor cell material properties based on an electrical 2-port measurement of the TEM line. We achieve a best noise-equivalent field of 106(4) $\mathrm{\frac{\mu V}{m \sqrt{Hz}}}$ at 300 MHz and characterize noise-equivalent fields in the ultra-low to very-low frequency (ULF-VLF) band.

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Baran Kayim, Michael A. Viray, David S. La Mantia, Daniel Richardson, James Dee, Ryan S. Westafer, Brian C. Sawyer, Robert Wyllie. 2026-03-11. Calibration of electric fields in low-frequency off-resonant Rydberg receivers. https://arxiv.org/abs/2603.10898

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