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17 papers
High resolution isotope shifts and hyperfine structure measurements of tungsten by laser induced fluorescence spectroscopy
Jeongwon Lee, Jinhai Chen, Aaron Leanhardt
Isotope shifts and hyperfine structure of tungsten were studied in the near UV range. We have used laser induced fluorescence spectroscopy on a pulsed supersonic beam to probe the…
Near-infrared LIF spectroscopy of HfF
Matt Grau, Aaron E. Leanhardt, Huanqian Loh +4
The molecular ion HfF is the chosen species for a JILA experiment to measure the electron electric dipole moment (eEDM). Detailed knowledge of the spectrum of HfF is crucial to…
On Measuring the Electron Electric Dipole Moment in Trapped Molecular Ions
Aaron E. Leanhardt, John L. Bohn, Huanqian Loh +5
Trapped diatomic molecular ions could prove to be a sensitive probe for a permanent electron electric dipole moment (eEDM). We propose to use a ground or metastable level,…
Berry-like phases in structured atoms and molecules
Edmund R. Meyer, Aaron Leanhardt, Eric Cornell +1
Quantum mechanical phases arising from a periodically varying Hamiltonian are considered. These phases are derived from the eigenvalues of a stationary, ``dressed'' Hamiltonian tha…
Imaging the Mott Insulator Shells using Atomic Clock Shifts
Gretchen K. Campbell, Jongchul Mun, Micah Boyd +5
Microwave spectroscopy was used to probe the superfluid-Mott Insulator transition of a Bose-Einstein condensate in a 3D optical lattice. Using density dependent transition frequenc…
Photon recoil momentum in dispersive media
Gretchen K. Campbell, Aaron E. Leanhardt, Jongchul Mun +4
A systematic shift of the photon recoil due to the index of refraction of a dilute gas of atoms has been observed. The recoil frequency was determined with a two-pulse light gratin…