This dataset represents absorption/transmission spectra of resonant probe light power through a Rydberg atom vapor, subject to a simultaneous dressing field and a 'low frequency' field. Data is taken as an oscilloscope average of 5 photodiode voltage traces, with frequency offsets given by a simultaneous reference cell (not included). Some data are given as 2-D arrays, with axes of laser detuning across a waterfall of field strength. Some data represents theory eigen-energies of the system, for comparison. This paper will be submitted to Physical Review Letters.

Recent advances in Rydberg atom electrometry detail promising applications in radiofrequency (RF) communications. Presently, most applications use carrier frequencies greater than 1 GHz where resonant Autler-Townes splitting provides the highest antenna sensitivity. This letter documents a series of experiments with Rydberg atomic antennas to collect and process waveforms from the automated identification system (AIS) used in maritime navigation in the VHF band. This is difficult with conventional resonant Autler-Townes based Rydberg sensing. Measurements were taken using electrically induced transparency (EIT) in rubidium and cesium vapor cells. We show the results from a newly published method called High Angular Momentum Matching Excited Raman (HAMMER) that enhances low frequency detection and exhibits superior sensitivity compared to the traditional AC Stark effect detection. We show the relationship between incident electric field strength and observed signal to noise ratio. With these results, we estimate the useable range of the atomic vapor cell antenna for AIS waveforms given current technology and detection techniques.

Recent advances in Rydberg atom electrometry detail promising applications in radiofrequency (RF) communications. Presently, most applications use carrier frequencies greater than 1 GHz where resonant Autler-Townes splitting provides the highest antenna sensitivity. This letter documents a series of experiments with Rydberg atomic antennas to collect and process waveforms from the automated identification system (AIS) used in maritime navigation in the VHF band. This is difficult with conventional resonant Autler-Townes based Rydberg sensing. Measurements were taken using electrically induced transparency (EIT) in rubidium and cesium vapor cells. We show the results from a newly published method called High Angular Momentum Matching Excited Raman (HAMMER) that enhances low frequency detection and exhibits superior sensitivity compared to the traditional AC Stark effect detection. We show the relationship between incident electric field strength and observed signal to noise ratio. With these results, we estimate the useable range of the atomic vapor cell antenna for AIS waveforms given current technology and detection techniques.

This dataset contains the data for the figures in the paper "EIT spectra of Rydberg atoms dressed with dual tone radio-frequency fields", submitted to Physical Review A. This dataset can be used to recreate the experimental and theory plots from the CSV files. The data show EIT spectra of Rydberg atoms driven with dual-tone RF fields (experimental), and Floquet spectra of numerical models that are used to model these EIT spectra (theory/numerical). The data demonstrate spectra of driven Rydberg atoms in the strong field regime, and the models demonstrate the applicability of two-level Floquet spectra to reproduce the dominant spectral features.

This dataset contains the data for the figures in the paper "EIT spectra of Rydberg atoms dressed with dual tone radio-frequency fields", submitted to Physical Review A. This dataset can be used to recreate the experimental and theory plots from the CSV files. The data show EIT spectra of Rydberg atoms driven with dual-tone RF fields (experimental), and Floquet spectra of numerical models that are used to model these EIT spectra (theory/numerical). The data demonstrate spectra of driven Rydberg atoms in the strong field regime, and the models demonstrate the applicability of two-level Floquet spectra to reproduce the dominant spectral features.

On-resonance Rydberg atom-based radio-frequency (RF) electric field sensing methods remain limited by the narrow frequency signal detection bands available by resonant transitions. The use ofan additional RF tuner field to dress or shift a target Rydberg state can be used to return a detuned signal field to resonance and thus dramatically extend the frequency range available for resonantsensing. Here we compare three distinct tuning schemes based on adjacent Rydberg transitions, which are shown to have distinct tuning characteristics and can be tuned with mechanisms based onthe tuning field frequency or field strength. We further show that a two-photon Raman feature can be used as an effective tuning mechanism separate from conventional Autler-Townes splitting. Wecompare our tuning schemes to AC Stark effect-based broadband RF field sensing and show that although the sensitivity is diminished as we tune away from a resonant state, it nevertheless can beused in configurations where there is a low density of Rydberg states, which would result in a weak AC Stark effect.

Data associated with the publication: "Two-dimensional imaging of electromagnetic fields via light sheet fluorescence imaging with Rydberg atoms"Abstract:The ability to image electromagnetic fields holds key scientific and industrial applications, including electromagnetic compatibility, diagnostics of high-frequency devices, and experimental scientific work involving field interactions. Generally electric and magnetic field measurements require conductive elements which significantly perturb the field. However, electromagnetic fields can be measured non-perturbatively via the shift they induce on Rydberg states of alkali atoms in atomic vapor, which are highly sensitive to electric fields. Previous field measurements using Rydberg atoms utilized electromagnetically induced transparency to read out the shift on the states induced by the fields, but did not provide spatial resolution. In this work, we demonstrate that electromagnetically induced transparency can be spatially resolved by imaging the fluorescence of the probe. We demonstrate that this can be used to image $\sim$V/cm scale electric fields in the MHz-GHz range and $\sim$mT scale static magnetic fields, with minimal perturbation to the fields. We also demonstrate the ability to image $\sim$ V/m scale fields for resonant microwave radiation, although standing waves generated by the vapor cell walls obscure external field structure in this regime. We perform this field imaging with a spatial resolution of order 160 $\mu$m.This dataset contains the data associated with Figure 1 c,f,g, and h, Figure 2, Figure 3 b,d,f, and h, Figure 4 c,d, and e, Figure 5 b, c, and e, Figure 6, and the Supplemental Material's Figure 1.

Data associated with the publication: "Two-dimensional imaging of electromagnetic fields via light sheet fluorescence imaging with Rydberg atoms"Abstract:The ability to image electromagnetic fields holds key scientific and industrial applications, including electromagnetic compatibility, diagnostics of high-frequency devices, and experimental scientific work involving field interactions. Generally electric and magnetic field measurements require conductive elements which significantly perturb the field. However, electromagnetic fields can be measured non-perturbatively via the shift they induce on Rydberg states of alkali atoms in atomic vapor, which are highly sensitive to electric fields. Previous field measurements using Rydberg atoms utilized electromagnetically induced transparency to read out the shift on the states induced by the fields, but did not provide spatial resolution. In this work, we demonstrate that electromagnetically induced transparency can be spatially resolved by imaging the fluorescence of the probe. We demonstrate that this can be used to image $\sim$V/cm scale electric fields in the MHz-GHz range and $\sim$mT scale static magnetic fields, with minimal perturbation to the fields. We also demonstrate the ability to image $\sim$ V/m scale fields for resonant microwave radiation, although standing waves generated by the vapor cell walls obscure external field structure in this regime. We perform this field imaging with a spatial resolution of order 160 $\mu$m.This dataset contains the data associated with Figure 1 c,f,g, and h, Figure 2, Figure 3 b,d,f, and h, Figure 4 c,d, and e, Figure 5 b, c, and e, Figure 6, and the Supplemental Material's Figure 1.

Measurement of the effect of electric field inhomogeneity on electromagnetically induced transparency in a waveguide-based cesium atomic vapor cell. Used for the figure for the Photonics West 2023 manuscript.

Measurement of the effect of electric field inhomogeneity on electromagnetically induced transparency in a waveguide-based cesium atomic vapor cell. Used for the figure for the Photonics West 2023 manuscript.