Laser spectroscopy on the hyperfine structure and isotope shift of sympathetically cooled ${}^{229}$Th${}^{3+}$ ions

G. Zitzer, J. Tiedau, Ch. E. Düllmann +2

The hyperfine structure of ${}^{229}$Th${}^{3+}$ ions in the nuclear ground state is investigated via laser spectroscopy of trapped Th${}^{3+}$ ions that are sympathetically cooled by la…