Erlangen 2018 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 33: Poster Session II
A 33.7: Poster
Mittwoch, 7. März 2018, 16:15–18:15, Redoutensaal
Optical quenching of metastable helium atoms via the 41P state — •Vivien Behrendt, Jonas Grzesiak, Simon Hofsäss, Frank Stienkemeier, and Katrin Dulitz — Albert-Ludwigs-Universität Freiburg
Our experiments are aimed at studying quantum-state-selected reactive Penning collisions between metastable helium atoms and ultracold lithium atoms. As a first step towards this goal, it is necessary to distinguish between the contributions of the He(21S) and the He(23S) state to the reaction. In this contribution, we will present a novel scheme for the quenching of the metastable singlet state using optical pumping to the 41P state at 397 nm and subsequent decay to the electronic ground state. We will present the experimental setup and preliminary results which illustrate that this scheme offers several experimental advantages compared to previous approaches.