Auflistung nach Schlagwort "Frequency metrology"

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  • Deceleration, precooling, and multi-pass stopping of highly charged ions in Be+ Coulomb crystals 
    Schmöger, L.; Schwarz, M.; Baumann, T.M.; Versolato, O.O.; Piest, B.; Pfeifer, T.; Ullrich, J.; Schmidt, Piet O.; Crespo López-Urrutia, J.R. (College Park, MD : American Institute of Physics, 2015)
    Preparing highly charged ions (HCIs) in a cold and strongly localized state is of particular interest for frequency metrology and tests of possible spatial and temporal variations of the fine structure constant. Our versatile ...
  • An optical clock based on a highly charged ion 
    Spieß, Lukas Josef (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2023)
    Optical clocks have demonstrated the lowest uncertainties among all experimental devices with applications in time keeping as well as for tests of fundamental physics. Their exceptional accuracy is realised by referencing ...
  • Phasenkohärenz in Femtosekunden-Superkontinua aus Mikrostruktur-Glasfasern 
    Haverkamp, Nils (Hannover : Universität, 2004)
    [no abstract]
  • An ultralow-noise superconducting radio-frequency ion trap for frequency metrology with highly charged ions 
    Stark, J.; Warnecke, C.; Bogen, S.; Chen, S.; Dijck, E.A.; Kühn, S.; Rosner, M.K.; Graf, A.; Nauta, J.; Oelmann, J.-H.; Schmöger, L.; Schwarz, M.; Liebert, D.; Spieß, L.J.; King, S.A.; Leopold, T.; Micke, P.; Schmidt, P.O.; Pfeifer, T.; Crespo López-Urrutia, J.R. ([Erscheinungsort nicht ermittelbar] : American Institute of Physics, 2021)
    We present a novel ultrastable superconducting radio-frequency (RF) ion trap realized as a combination of an RF cavity and a linear Paul trap. Its RF quadrupole mode at 34.52 MHz reaches a quality factor of Q ≈ 2.3 × 105 ...