Erlangen 2018 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 42: Poster Session IIIb
A 42.15: Poster
Donnerstag, 8. März 2018, 16:15–18:15, Zelt Ost
A Reaction Microscope for few-body Rydberg Dynamics — •Philipp Geppert, Dominik Arnold, Cihan Sahin, Andreas Müllers, and Herwig Ott — Department of Physics and Research Center OPTIMAS, University of Kaiserslautern, Germany
We report on the development of a reaction microscope that is based on our deterministic ion source experiment (C. Sahin et al 2017 New J. Phys.) and allows to measure the dynamical evolution of momentum distributions in interacting Rydberg systems. To this purpose, a sample of 106 87Rb atoms will be prepared in a crossed dipole trap. Using a 3-level excitation scheme, some atoms can be excited to atomic or molecular Rydberg states and photoionized by a short laser pulse from a high power CO2 laser after a variable evolution time. Following small homogeneous electric fields generated by Wiley-McLaren-type ion optics, the produced ions are subsequently detected by a time and position sensitive delay-line detector. By analyzing the trajectories of the recoil ions, we aim to measure momentum distributions of Rydberg molecule wave functions. In this context, special focus lies on butterfly and trilobite molecules, which can be addressed efficiently due to the opportunity of exciting Rydberg p- and f-states. As a next step, stroboscopic monitoring on the internal decay of Rydberg molecules and measurements regarding forces between pairs of Rydberg atoms will be performed.