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Observation of a narrow inner-shell orbital transition in atomic erbium at 1299 nm
A. Patscheider, B. Yang, G. Natale +6
We report on the observation and coherent excitation of atoms on the narrow inner-shell orbital transition, connecting the erbium ground state $[\mathrm{Xe}] 4f^{12} (^3\text{H}_6)…
Spectroscopy of Rydberg States in Erbium using Electromagnetically Induced Transparency
A. Trautmann, M. J. Mark, P. Ilzhöfer +6
We present a study of the Rydberg spectrum in \ts{166}Er for series connected to the , and ionic core states using an all-optical detect…
Hyperfine structure of laser-cooling transitions in fermionic erbium-167
Albert Frisch, Kiyotaka Aikawa, Michael Mark +3
We have measured and analyzed the hyperfine structure of two lines, one at 583nm and one at 401nm, of the only stable fermionic isotope of atomic erbium as well as determined its i…
Narrow-line magneto-optical trap for erbium
A. Frisch, K. Aikawa, M. Mark +5
We report on the experimental realization of a robust and efficient magneto-optical trap for erbium atoms, based on a narrow cooling transition at 583nm. We observe up to $N=2 \tim…
Towards the production of ultracold ground-state RbCs molecules: Feshbach resonances, weakly bound states, and coupled-channel model
Tetsu Takekoshi, Markus Debatin, Raffael Rameshan +8
We have studied interspecies scattering in an ultracold mixture of Rb and Cs atoms, both in their lowest-energy spin states. The three-body loss signatures of 30 inc…
Molecular spectroscopy for ground-state transfer of ultracold RbCs molecules
Markus Debatin, Tetsu Takekoshi, Raffael Rameshan +7
We perform one- and two-photon high resolution spectroscopy on ultracold samples of RbCs Feshbach molecules with the aim to identify a suitable route for efficient ground-state tra…