171 citations · 1.9k across the 36 of their papers we have counts for
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physics.atom-ph2008★ 43 cited
Direct frequency comb spectroscopy of trapped ions
A. L. Wolf, S. A. van den Berg, W. Ubachs +1
Direct frequency comb spectroscopy of trapped ions is demonstated for the first time. It is shown that the 4s^2S_(1/2)-4p^2P_(3/2) transition in calcium ions can be excited directl…
physics.atom-ph2008★ 37 cited
Frequency metrology on the 4s 2S1/2 - 4p 2P1/2 transition in the calcium ion for a comparison with quasar data
A. L. Wolf, S. A. van den Berg, C. Gohle +3
High accuracy frequency metrology on the 4s 2S1/2 - 4p 2P1/2 transition in calcium ions is performed using laser cooled and crystallized ions in a linear Paul trap. Calibration is…