241 citations · 871 across the 17 of their papers we have counts for
17 papers
Continuous-wave laser absorption spectroscopy of the Thorium-229 nucleus
I. Morawetz, T. Riebner, L. Toscani De Col +17
A low-energy nuclear transition in the isotope thorium-229 has been excited in thorium-doped crystals with laser light. This opens the perspective towards a highly stable and robus…
Continuous-wave laser source at the 148 nm nuclear transition of Th-229
Vishal Lal, Maksim V. Okhapkin, Johannes Tiedau +3
A continuous-wave laser source at 148.4 nm based on second-harmonic generation in randomly quasi-phase matched strontium tetraborate, SrB4O7, is demonstrated. It provides (1.3-0.6+…
Electronic level structure of in the range of the isomer energy
David-Marcel Meier, Johannes Thielking, Przemysław Głowacki +4
Using resonant two-step laser excitation of trapped ions, we observe 166 previously unknown energy levels of even parity within the energy range from 7.8 to 9…
Nuclear charge radii of Th from isotope and isomer shifts
M. S. Safronova, S. G. Porsev, M. G. Kozlov +5
The isotope Th is unique in that it possesses an isomeric state of only a few eV above the ground state, suitable for nuclear laser excitation. An optical clock based on th…
Hyperfine interaction with the Th nucleus and its low lying isomeric state
Robert A. Müller, Anna V. Maiorova, Stephan Fritzsche +8
The thorium nucleus with mass number has attracted much interest because its extremely low lying first excited isomeric state at about eV opens the possibility for the d…
Observation of an unexpected negative isotope shift in 229Th+ and its theoretical explanation
M. V. Okhapkin, D. M. Meier, E. Peik +3
We have measured the hyperfine structure and isotope shifts of the 402.0 nm and 399.6 nm resonance lines in 229Th+. These transitions could provide pathways towards the 229Th isome…