SAMOP 2023 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 4: Cold Molecules (joint session MO/Q)
Q 4.7: Talk
Monday, March 6, 2023, 12:30–12:45, F102
Threshold photodetachment spectroscopic studies of C2− — •sruthi purushu melath, christine maria lochmann, markus nötzold, robert wild, and roland wester — Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Austria
Photodetachment spectroscopy is a powerful spectroscopic technique for determining the internal state distribution of a molecular anion. The dicarbon anion, our current molecule of interest, is a well-studied system due to its stable electronic level structure and potential laser cooling transition [1].
Here we present the photodetachment spectroscopy of C2− near threshold in a radiofrequency 16-pole wire trap at 8 K. The main goal of the experiment is to analyze the behavior of the cross section near the threshold, determine the electron affinity more precisely than previously measured [2,3], and if possible, obtain a rotationally resolved photodetachment signal as a function of photon energy. The status of the project will be presented.
[1]. M. Nötzold et al., Phys. Rev. A 106, 023111 (2022) [2]. K. M. Ervin, et al., J. Phys. Chem. 95, 2244 (1991) [3]. B. A. Laws et al., Nat. Commun. 10, 1(2019)