1,720,979 research outputs found
Data for "Interferometric laser cooling of atomic rubidium"
No full textDataset supports: Dunning, A. et al. (2015). Interferometric laser cooling of atomic rubidium. Physical Review Letters, 115(73004), 1-5. </span
Dataset for Velocimetry of cold atoms by matter-wave interferometry
No full textPaper relates to the measurement of the velocity distribution of atoms within a laser-cooled sample by the means of atom interferometry, by employing an asymmetric Mach-Zehnder interferometer.
Data are attached for interferometer output used in 3 velocity profile measurements, with corresponding Raman Doppler spectroscopic measurements of the profiles for comparison.
The first column of each data file is the parameter varied, either the temporal asymmetry of the interferometer (in ns) for the interferometer data, or the laser detuning (in kHz) for the spectroscopic measurements.
The "output" columns are measurements of the fraction of atoms in the upper energy state. If multiple data are taken for a single point, more that one "output" column is present and additional columns are included for the mean and standard deviation. When there is only one output column, the uncertainty in the measurement of the excited state population is given.
Data files with the "doppler-" prefix are the spectroscopic measurements, while each interferometer measurement has two data files taken with ("-inphase" suffix) and without ("-quadrature" suffix) a pi/2 phase shift prior to the final interferometer pulse.
The numerical suffix links spectroscopic and interferometric measurements taken under the same conditions.
Correction: One of the previously listed co-creators, David Elcock, requested that his name be removed from the creator list, which has been implemented. (2021-10-28)</span
Dataset for Matterwave interferometric velocimetry of cold Rb atoms
No full textPaper relates to the measurement of the velocity distribution of atoms within a laser-cooled sample by the means of atom interferometry.
These data ("output 1,2,3" columns) are repeat measurements of the fraction of atoms in the upper energy state upon varying the time separation between interferometer pulses ("t [ns]" column) with ("velocimetry_quadrature.csv") and without ("velocimetry_in_phase.csv") a pi/2 phase shift between pulses.
A Fourier transform of the averaged data in the "mean" columns was used to determine the velocity distribution.</span
Dataset for Optimal control of Raman pulse sequences for atom interferometry
No full textDataset supports: Saywell, J. C., Carey, M., Belal, M., Kuprov, I., & Freegarde, T. (2020). Optimal control of Raman pulse sequences for atom interferometry. Journal of Physics B, 53(8), 1-10. [085006]. 10.1088/1361-6455/ab6df6
Paper relates to the demonstration of optimised Raman pulses in atom interferometry using a laser-cooled sample of rubidium-85 atoms. These pulses improve the pulse fidelity and fringe contrast of atom interferometers.</span
- …
