Details

Autor(en) / Beteiligte

• Kastirke, G
• Ota, F
• Rezvan, D. V
• Schöffler, M. S
• Weller, M
• Rist, J
• Boll, R
• Anders, N
• Baumann, T. M
• Eckart, S
• Erk, B
• De Fanis, A
• Fehre, K
• Gatton, A
• Grundmann, S
• Grychtol, P
• Hartung, A
• Hofmann, M
• Ilchen, M
• Janke, C
• Kircher, M
• Kunitski, M
• Li, X
• Mazza, T
• Melzer, N
• Montano, J
• Music, V
• Nalin, G
• Ovcharenko, Y
• Pier, A
• Rennhack, N
• Rivas, D. E
• Dörner, R
• Rolles, D
• Rudenko, A
• Schmidt, Ph
• Siebert, J
• Strenger, N
• Trabert, D
• Vela-Perez, I
• Wagner, R
• Weber, Th
• Williams, J. B
• Ziolkowski, P
• Schmidt, L. Ph. H
• Czasch, A
• Tamura, Y
• Hara, N
• Yamazaki, K
• Hatada, K
• Trinter, F
• Meyer, M
• Ueda, K
• Demekhin, Ph. V
• Jahnke, T

Titel

Investigating charge-up and fragmentation dynamics of oxygen molecules after interaction with strong X-ray free-electron laser pulses

Ist Teil von

• Physical chemistry chemical physics : PCCP, 2022-11, Vol.24 (44), p.27121-27127

Ort / Verlag

Cambridge: Royal Society of Chemistry

Erscheinungsjahr

2022

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• During the last decade, X-ray free-electron lasers (XFELs) have enabled the study of light-matter interaction under extreme conditions. Atoms which are subject to XFEL radiation are charged by a complex interplay of (several subsequent) photoionization events and electronic decay processes within a few femtoseconds. The interaction with molecules is even more intriguing, since intricate nuclear dynamics occur as the molecules start to dissociate during the charge-up process. Here, we demonstrate that by analyzing photoelectron angular emission distributions and kinetic energy release of charge states of ionic molecular fragments, we can obtain a detailed understanding of the charge-up and fragmentation dynamics. Our novel approach allows for gathering such information without the need of complex ab initio modeling. As an example, we provide a detailed view on the processes happening on a femtosecond time scale in oxygen molecules exposed to intense XFEL pulses. The X-ray-induced charge-up and fragmentation process of a small molecule is examined in great detail by measuring the molecular-frame photoelectron interference pattern in conjunction with other observables in coincidence.