Ultrafast ionization and fragmentation dynamics of polycyclic atomatic hydro-carbons by XUV radiation

B. Manschwetus, P. Chopra, D. Tikhonov, H. Köckert, S. Gruet, J. Lahl, S. Maclot, J. Peschel, A. L. Steber, J. W.L. Lee, R. Boll, S. Bari, S. Dörner, F. Allum, B. Erk, Lanhai He, C. Passow, D. Rompotis, A. Lemmens, R. MasonD. Heathcote, M. Burt, J. Wiese, M. Johny, E. Müller, F. Ziaee, M. M. Kazemi, N. Schirmel, P. Olshin, X. Cheng, D. Ramm, S. Trippel, T. Mullins, A. Rijs, J. Küpper, C. Vallence, M. Brouard, D. Rolles, P. Johnsson, M. Schnell

Research output: Contribution to JournalArticleAcademicpeer-review


In the interstellar medium polycyclic aromatic hydrocarbon molecules (PAH) are exposed to strong ionizing radation leading to complex organic photochemistry. We investigated these ultrafast fragmentation reac-tions after ionization of the PAHs phenanthrene, fluorene and pyrene at a wavelength of 30.3 nm using pump probe spectroscopy at a free electron laser. We observe double ionization and afterwards hydrogen abstraction and acetylene loss with characteristic time scales for the reaction processes below one hundred femtoseconds.

Original languageEnglish
Article number112008
JournalJournal of Physics: Conference Series
Issue number11
Publication statusPublished - 11 Jun 2020
Externally publishedYes
Event31st International Conference on Photonic, Electronic and Atomic Collisions, ICPEAC 2019 - Deauville, France
Duration: 23 Jul 201930 Jul 2019


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