Pseudo-resonant Detection of 'Low Frequency' VHF Electric Fields via Rabi Matching with Autler-Townes Splitting in Rydberg Atoms

Rotunno, Andrew P.; Berweger, Samuel; Prajapati, Nikunjkumar; Simons, Matthew T.; Artusio‐Glimpse, Alexandra B.; Holloway, Christopher L.; Jayaseelan, Maitreyi; Potvliege, R. M.; Adams, C. S.

doi:10.48550/arxiv.2212.03304

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“…At NIST, we have demonstrated the use of Rydberg atoms for in situ, traceable measurements of power in waveguide [11], voltage reference measurements [12], and determination of the angle of arrival of an over the air test signal [13]. We have studied a scheme that extends the sensitivity of the Rydberg atoms to lower, few MHz, RF frequencies by applying an additional GHz field to engineer the desired Rydberg atom response [14]. Dressing the atoms with other RF fields also allows us to stretch the resonant AT behavior over a continuous range of RF frequencies [15].…”

Section: Rydberg Atoms For Sensing and Receivingmentioning

confidence: 99%

C1.2 - Rydberg Atoms for One-Step Traceability for Sensing Electric Fields

Artusio‐Glimpse¹,

Holloway²,

Simons³

et al. 2023

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Absolute electric field measurements present a "chicken-and-egg" situation where calibration of field probes relies on accurate knowledge of the field while precise determination of the field involves measurements with a calibrated probe. Metrology institutes overcome this dilemma by employing careful geometric measurements, Maxwell's equations, and a long chain of calibrations to determine absolute field strength with order of 5% uncertainty. We describe an alternative approach using Rydberg atoms that ties radio frequency electric field strength to Planck's constant through calculable quantum properties of the atoms for improved accuracy and simplicity. In addition to improved calibrations, Rydberg atom probes can be used as sensors and receivers for a wide swath of applications that we describe.

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