Polarization-insensitive microwave electrometry using Rydberg atoms

Abstract

We investigate the Autler-Townes splitting for Rydberg atoms dressed with linearly polarized microwave radiation, resonant with generic $S_{1/2}\leftrightarrow P_{1/2}$ and $S_{1/2}\leftrightarrow P_{3/2}$ transitions. The splitting is probed using laser light via electromagnetically-induced transparency measurements, where the transmission of probe laser light reveals a two-peak pattern. In particular, this pattern is invariant under rotation of the microwave field polarization. In consequence, we establish $S\leftrightarrow P$ Rydberg transitions as ideally suited for polarization-insensitive electrometry, contrary to recent findings [A. Chopinaud and J.D. Pritchard, Phys. Rev. Appl. $16$, 024008 (2021)].

References in corpus (2)

• Broadband Rydberg Atom-Based Electric-Field Probe: From Self-Calibrated Measurements to Sub-Wavelength Imaging
• Distant RF field sensing with a passive Rydberg-atomic transducer

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