Erlangen 2018 – scientific programme

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MO: Fachverband Molekülphysik

MO 5: X-Ray and XUV Spectroscopy (joint session MO/A)

MO 5.4: Talk

Monday, March 5, 2018, 15:00–15:15, PA 2.150

Time-Resolved Pump-Probe Spectroscopy of XUV-induced Dynamics in Water, Ammonia and Methanol Clusters — •Rupert Michiels¹, Aaron LaForge¹, Matthias Bohlen¹, Carlo Callegari², Andrew Clark³, Marcel Drabbels³, Kevin C. Prince², Stefano Stranges⁴, Marcello Coreno⁵, Oksana Plekan², Veronica Oliver³, Aaron von Conta⁶, Martin Huppert⁶, Hans-Jakob Wörner⁶, and Frank Stienkemeier¹ — ¹Universität Freiburg, Germany — ²Elettra-Sincrotrone Trieste, Italy — ³Ecole Polytechnique Féderale de Lausanne, Switzerland — ⁴University Sapienza, Italy — ⁵ISM-CNR, Trieste, Italy — ⁶ETH Zürich, Switzerland

Results for ammonia, methanol and water clusters investigating the dynamics upon XUV ionization with the FERMI free electron laser are presented. In an XUV-UV pump-probe scheme we obtain a time-resolved picture of the resulting fragments and their electronic states. Recombination and molecular dissociation lead to a great variety of electron energies and ionic fragments that give insight into the underlying dynamics. The vertical detachment energies of the electrons and masses of the ions were measured by means of a VMI velocity map imaging detector combined with a time-of-flight mass spectrometer which also allows a covariance analysis.