N. Frömmgen

activity

20122016

^{12}

129 citations · 431 across the 8 of their papers we have counts for

collaborators

8 papers

physics.atom-ph2016★ 28 cited

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 $2 s^{2} S_{1/2}$ $\to$ $2 p^{2} P_{1/2, 3/2}$ transitions in Be $^{+}$ were measured with a frequency comb in stable and short…

nucl-ex2015★ 22 cited

Collinear laser spectroscopy of atomic cadmium

Nadja Frömmgen, Dimiter L. Balabanski, Mark L. Bissell +16

Hyperfine structure $A$ and $B$ factors of the atomic $5 s 5 p^{3} P_{2} \to 5s 6s^{3} S_{1}$ transition are determined from collinear laser spectroscopy data of…

physics.atom-ph2015★ 21 cited

Precision Test of Many-Body QED in the Be $^{+}$ $2 p$ Fine Structure Doublet Using Short-Lived Isotopes

Wilfried Nörtershäuser, Christopher Geppert, Andreas Krieger +13

Absolute transition frequencies of the $2 s^{2} S_{1/2} \to 2 p^{2} P_{1/2, 3/2}$ transitions in Be $^{+}$ were measured for the isotopes $^{7, 9 - 12}$ Be. The fine st…

physics.atom-ph2015

Isotope shift of $^{40, 42, 44, 48}$ Ca in the $4 s^{2} S_{\frac{1}{2}} \to 4p^{2} P_{\frac{3}{2}}$ transition

C. Gorges, K. Blaum, N. Frömmgen +8

We report on improved isotope shift measurements of the isotopes $^{40, 42, 44, 48}$ Ca in the $4 s^{2} S_{\frac{1}{2}} \to 4p^{2} P_{\frac{3}{2}}$ (D2) transition usin…

nucl-ex2015★ 57 cited

Ground-State Electromagnetic Moments of Calcium Isotopes

R. F. Garcia Ruiz, M. L. Bissell, K. Blaum +15

High-resolution bunched-beam collinear laser spectroscopy was used to measure the optical hyperfine spectra of the $^{43 - 51}$ Ca isotopes. The ground state magnetic moments of $^{49…

physics.atom-ph2014★ 63 cited

Observation of the hyperfine transition in lithium-like Bismuth $^{209} Bi^{80 +}$ : Towards a test of QED in strong magnetic fields

Matthias Lochmann, Raphael Jöhren, Christopher Geppert +21

We performed a laser spectroscopic determination of the $2 s$ hyperfine splitting (HFS) of Li-like $^{209} Bi^{80 +}$ and repeated the measurement of the $1 s$ HFS of H-like $^{…