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physics.atom-ph2008★ 58 cited
Precision measurement of the branching fractions of the 4P3/2 decay of Ca II
R. Gerritsma, G. Kirchmair, F. Zaehringer +3
We perform precision measurements of the branching ratios of the 4P3/2 level decay of a single 40Ca+ ion suspended in a linear Paul trap. High precision is achieved by a novel tech…
physics.atom-ph2008★ 164 cited
Absolute frequency measurement of the 40Ca+ S1/2 - D5/2 clock transition
M. Chwalla, J. Benhelm, K. Kim +12
We report on the first absolute transition frequency measurement at the 10^{-15} level with a single, laser-cooled 40Ca+ ion in a linear Paul trap. For this measurement, a frequenc…
physics.atom-ph2006★ 38 cited
Measurement of the hyperfine structure of the S1/2-D5/2 transition in 43Ca+
J. Benhelm, G. Kirchmair, U. Rapol +3
The hyperfine structure of the S1/2-D5/2 quadrupole transition at 729 nm in 43Ca+ has been investigated by laser spectroscopy using a single trapped 43Ca+ ion. We determine the hyp…