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Data associated with "Zeeman-resolved Autler-Townes splitting in Rydberg atoms with a tunable RF resonance and a single transition dipole moment"
Data associated with the publication: "Zeeman-resolved Autler-Townes splitting in Rydberg atoms with a tunable RF resonance and a single transition dipole moment"Applying a magnetic field as a method for tuning the frequency of Autler-Townes splitting for Rydberg electrometry has recently been demonstrated. In the corresponding paper, we provide a theoretical understanding of EIT signals in the presence of a large magnetic field, as well as demonstrate some advantages of this technique over traditional Autler-Townes based electrometry. We show that a strong magnetic field provides a well-defined quantization axis regardless of the optical field polarizations, we demonstrate that by separating the $m_J$ levels of the Rydberg state we can perform an Autler-Townes splitting with a single participating dipole moment, and we demonstrate recovery of signal strength by populating a single $m_J$ level using circularly polarized light.Included in this dataset is the data associated with every plot in the paper, separated by figure number, including:FIgure 2: Measured EIT signals in the presence of a strong(1.85(1) mT) magnetic field either aligned with or orthogonalto the polarization axis. Figure 3: Theoretical EIT signals for Cs in the presence ofa 1.85(1) mT magnetic field for light polarizations alignedto or orthogonal to the magnetic field.Figure 4: Measured Autler-Townes splittings in individual mJlevels via the 58D5/2(mJ = ±5/2) → 59P3/2(mJ = ±3/2)transitions of Cs in the presence of 2.78(1) mT.Figure 5: Measured Autler-Townes splittings on the Cs58D5/2 → 59P3/2 transition with and without mJ selectivityfor various RF fields up to 3.08 V/m. Figure 6: EIT in the presence of a large magnetic field using circularly polarized light.EIT signals correspond to voltage traces (collected on an oscilloscope) of a balanced photodiode as laser frequencies are scanned. The x axis is converted from a time series of each voltage to a frequency using a reference cell. The scaling is determined by measuring the difference between the EIT peaks corresponding to the D5/2 and D3/2 Rydberg states, and the zero is generally taken to be the location of the D5/2 EIT peak.
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Rydberg Atom Electrometry: Recent Sensitivity and Bandwidth Improvements
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We present recent improvements within the growing field of Rydberg atom sensors. While initially started as a path towards absolute, independent measurements of electric fields, the research landscape has evolved into the realm of quantum sensors and receivers. We discuss the capabilities and limitations of Rydberg atom receivers, and we show how different atomic properties enhance or limit sensitivity and bandwidth.This data is for a review paper. Figures 6 (a) and 8 (a) and (b) are new data. The rest of the data is extracted from other NIST publications that have a data management plan. Related data are from the following papers.https://doi.org/10.1063/5.0069195https://doi.org/10.48550/arXiv.2402.00718https://doi.org/10.1116/5.0098057
Determining angle of arrival of radio frequency fields using subwavelength, amplitude-only measurements of standing waves in a Rydberg atom sensor
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Deep subwavelength RF imaging with atomic Rydberg sensors has overcome fundamental limitations of traditionalantennas and enabled ultra-wideband detection of omni-directional time varying fields all in a compactform factor. However, in most applications, Rydberg sensors require the use of a secondary strong RF referencefield to serve as a phase reference. Here, we demonstrate a new type of Rydberg sensor for Angle-of-Arrival(AoA) sensing which utilizes subwavelength imaging of standing wave fields. By placing a metallic plate withinthe Rydberg cell, we can determine the AoA independent of the strength of incoming RF field and without requiringa secondary strong RF phase reference field. We perform precision AoA measurements with a roboticantenna positioning system for 4.2, 5.0, and 5.7 GHz signals and demonstrate a 1.7◦ polar angular resolutionfrom 0◦ to 60◦ AoA and 4.1◦ over all possible angles.
Supplemental data for "Comparison of measured and simulated spin-wave mode spectra of magnetic nanostructures" by H. T. Nembach, R.D. McMichael, M.L. Schneider, J.M. Shaw, T.J. Silva.
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Supplemental data for "Comparison of measured and simulated spin-wave mode spectra of magnetic nanostructures" by H. T. Nembach, R.D. McMichael, M.L. Schneider, J.M. Shaw, T.J. Silva.1) Experimental spectra of approximately elliptical, 100 nm or 200 nm elliptical magnetic structures. 2) SEM images of the magnetic structures 3) Scripts and data used in micromagnetic modeling and simulated measurements of the structures. Experiment: In this work, we prepared two sets of Ni80Fe20 elliptical nanomagnets with nominal long axes lengths (short axes lengths) of 240 nm (200 nm) and 120 nm (100 nm): Thin-film layers of 3 nm Ta/10 nm Ni80Fe20/5 nm Si3N4 were dc-magnetron sputtered onto a sapphire substrate before a 15-nm diamond-like carbon (DLC) layer was deposited via ion-beam deposition in a separate vacuum chamber. The spin wave mode spectra of the magnetization dynamics were measured with a heterodyne magneto-optical microwave microscope (H-MOMM) Simulations: We carried out micromagnetic simulations using the Object Oriented MicroMagnetic Framework (OommF). To determine the shape for modeled nanomagnets, greyscale SEM images of the nanomagnets were converted into binary images using a thresholding algorithm. The original SEM images were given a Gaussian blur over 1.4 nm (3 pixels), rescaled by 25 % and given a secondary blur over 3.8 nm. A threshold value was determined using Otsu's method. The simulated spectra were extracted from impulse response calculations made at an array of applied field values in the experimental range. The modeling also provides the spatial profile of the spin wave modes. The bulk of the data is associated with the micromagnetic modeling. Files include OommF input '.mif' scripts, sample masks, modeling output and python scripts for analysis and plotting, and the resulting figures.
Van Allen Probe A WFR Spectral Matrix Burst.
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a short description.
Data and code for the paper, "Inverse Transform Sampling for Efficient Doppler-Averaged Spectroscopy Simulations"
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This dataset represents the results of calculations of atomic absorption spectra for the case of two-color EIT. We compare computation methods, specifically Gaussian sampling, to find that one sampling method converges to smooth transmittance curves in less time than the other. We also include some example scripts which generate and plot the figure data.
Experimental data, refined configurations, and other necessary input to RMCProfile used in structural refinements reported in the paper "Emergent topological polarization textures in relaxor ferroelectrics" by M. Eremenko, V. Krayzman, S. Gorfman, A. Bosak, H. Y. Playford, P. A. Chater, B. Ravel, W. J. Laws, F. Ye, A. Minelli, B.-X. Wang, Z-G. Ye, M. G. Tucker, I. Levin.
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This zip file contains experimental data, refined configurations, and other necessary input to RMCProfile used in structural refinements reported in the paper "Emergent topological polarization textures in relaxor ferroelectrics" by M. Eremenko, V. Krayzman, S. Gorfman, A. Bosak, H. Y. Playford, P. A. Chater, B. Ravel, W. J. Laws, F. Ye, A. Minelli, B.-X. Wang, Z-G. Ye, M. G. Tucker, I. Levin.
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