159 citations · 442 across the 12 of their papers we have counts for
12 papers
Time-resolved quantum beats in the fluorescence of helium resonantly excited by XUV radiation
AC LaForge, A Benediktovitch, V Sukharnikov +18
We report on the observation of time-resolved quantum beats in the helium fluorescence from the transition 1s3p -> 1s2s, where the initial state is excited by XUV free-electron las…
Empirical LiK excited state potentials: connecting short range and near dissociation expansions
Sofia Botsi, Anbang Yang, Mark M. Lam +4
We report on a high-resolution spectroscopic survey of molecules near the dissociation threshold and produce a fully…
Single-shot electron imaging of dopant-induced nanoplasmas
C. Medina, D. Schomas, N. Rendler +19
We present single-shot electron velocity-map images of nanoplasmas generated from doped helium nanodroplets and neon clusters by intense near-infrared and mid-infrared laser pulses…
Quantum sensing protocol for motionally chiral Rydberg atoms
Stefan Yoshi Buhmann, Steffen Giesen, Mira Diekmann +5
A quantum sensing protocol is proposed for demonstrating the motion-induced chirality of circularly polarised Rydberg atoms. To this end, a cloud of Rydberg atoms is dressed by a b…
Ignition of a helium nanoplasma by x-ray multiple ionization of a heavy rare-gas core
D. Schomas, C. Medina, L. Ben Ltaief +14
The dynamics of an x-ray-ionized two-component core-shell nanosystem is probed using doped helium (He) nanodroplets. First, a soft x-ray pump pulse selectively inner-shell ionizes…
Suppression of Penning ionization by orbital angular momentum conservation
Katrin Dulitz, Tobias Sixt, Jiwen Guan +3
The efficient suppression of Penning-ionizing collisions is a stringent requirement to achieve quantum degeneracy in metastable rare gases. Thus far, such loss processes have been…
Optical trapping of ion Coulomb crystals
Julian Schmidt, Alexander Lambrecht, Pascal Weckesser +3
The electronic and motional degrees of freedom of trapped ions can be controlled and coherently coupled on the level of individual quanta. Assembling complex quantum systems ion by…
Long lifetimes in optical ion traps
Alexander Lambrecht, Julian Schmidt, Pascal Weckesser +3
We report on single Barium ions confined in a near-infrared optical dipole trap for up to three seconds in absence of any radio-frequency fields. Additionally, the lifetime in a vi…
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…
Production of a dual-species Bose-Einstein condensate of Rb and Cs atoms
A. D. Lercher, T. Takekoshi, M. Debatin +5
We report the simultaneous production of Bose-Einstein condensates (BECs) of Rb and Cs atoms in separate optical traps. The two samples are mixed during laser coolin…
A planar multipole ion trap
M. Debatin, M. Kröner, J. Mikosch +6
We report on the realisation of a chip-based multipole ion trap manufactured using micro-electromechanical systems (MEMS) technology. It provides ion confinement in an almost field…