131 citations · 509 across the 24 of their papers we have counts for
24 papers
Growth and characterization of thorium-doped calcium fluoride single crystals
Kjeld Beeks, Tomas Sikorsky, Veronika Rosecker +13
We have grown Th:CaF and Th:CaF single crystals for investigations on the VUV laser-accessible first nuclear excited state of Th. To reach high dopi…
Ultimate stability of active optical frequency standards
Georgy A. Kazakov, Swadheen Dubey, Anna Bychek +3
Active optical frequency standards provide interesting alternatives to their passive counterparts. Particularly, such a clock alone continuously generates highly-stable narrow-line…
Continuous multi-step pumping of the optical clock transition in alkaline-earth atoms with minimal perturbation
Christoph Hotter, David Plankensteiner, Georgy Kazakov +1
A suitable scheme to continuously create inversion on an optical clock transition with negligible perturbation is a key missing ingredient required to build an active optical atomi…
Driven electronic bridge processes via defect states in Th-doped crystals
Brenden S. Nickerson, Martin Pimon, Pavlo V. Bilous +7
The electronic defect states resulting from doping Th in CaF offer a unique opportunity to excite the nuclear isomeric state Th at approximately 8 eV via elect…
The theory of direct laser excitation of nuclear transitions
Lars von der Wense, Pavlo V. Bilous, Benedict Seiferle +5
A comprehensive theoretical study of direct laser excitation of a nuclear state based on the density matrix formalism is presented. The nuclear clock isomer Th is d…
Towards an energy measurement of the internal conversion electron in the de-excitation of the Th-229 isomer
Simon Stellmer, Yudai Shigekawa, Veronika Rosecker +5
The first excited isomeric state of Th-229 has an exceptionally low energy of only a few eV and could form the gateway to high-precision laser spectroscopy of nuclei. The excitatio…