1. Rydberg atom-based field sensing enhancement using a split-ring resonator.
- Author
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Holloway, Christopher L., Prajapati, Nikunjkumar, Artusio-Glimpse, Alexandra B., Berweger, Samuel, Simons, Matthew T., Kasahara, Yoshiaki, Alù, Andrea, and Ziolkowski, Richard W.
- Subjects
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RESONATORS , *CESIUM , *SENSES , *ATOMS , *DETECTORS - Abstract
We investigate the use of a split-ring resonator (SRR) incorporated with an atomic-vapor cell to improve the sensitivity and the minimal detectable electric (E) field of Rydberg atom-based sensors. In this approach, a sub-wavelength SRR is placed around an atomic vapor-cell filled with cesium atoms for E-field measurements at 1.3 GHz. The SRR provides a factor of 100 in the enhancement of the E-field measurement sensitivity. Using electromagnetically induced transparency (EIT) with Aulter–Townes splitting, E-field measurements down to 5 mV/m are demonstrated with the SRR, while in the absence of the SRR, the minimal detectable field is 500 mV/m. We demonstrate that by combining EIT with a heterodyne Rydberg atom-based mixer approach, the SRR allows for a sensitivity of 5.5 μV/m Hz , which is two-orders of magnitude improvement in sensitivity than when the SRR is not used. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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