Frequency-comb based collinear laser spectroscopy of Be for nuclear structure investigations and many-body QED tests

A. Krieger, W. Nörtershäuser, Ch. Geppert +13

Absolute transition frequencies of the $2s{}^2{\mathrm{S}}_{1/2}$ $\to$ $2p{}^2{\mathrm{P}}_{1/2,3/2}$ transitions in Be${}^{+}$ were measured with a frequency comb in stable and short…