Time-resolved Auger–Meitner spectroscopy of the photodissociation dynamics of CS<sub>2</sub>
Abstract The photodissociation dynamics of UV excited CS 2 are investigated using time-resolved Auger–Meitner (AM) spectroscopy. AM decay is initiated by inner-shell ionisation with a femtosecond duration x-ray (179.9 eV) probe generated by the FERMI free electron laser. The time-delayed x-ray probe removes an electron from the S(2p) orbital leading to secondary emission of a high energy electron through AM decay. We monitor the electron kinetic energy of the AM emission as a function of pump-probe delay and observe time-dependent changes in the spectrum that correlate with the formation of bound, excited-state CS 2 molecules at early times, and CS + S fragments on the picosecond timescale. The results are analysed based on a simplified kinetic scheme that provides a time constant for dissociation of approximately 1.2 ps, in agreement with previous time-resolved x-ray photoelectron spectroscopy measurements (Gabalski, et al 2023 J. Phys. Chem. Lett. 14 7126–7133).
Authors
- Daniel Rolles (ORCID: https://orcid.org/0000-0002-3965-3477)
- Oksana Plekan (ORCID: https://orcid.org/0000-0002-4692-7018)
- Felix Allum (ORCID: https://orcid.org/0000-0002-8044-8969)
- Cesare Grazioli (ORCID: https://orcid.org/0000-0002-6255-2041)
- Michele Di Fraia (ORCID: https://orcid.org/0000-0001-8102-0799)
- Marcello Coreno (ORCID: https://orcid.org/0000-0003-4376-808X)
- Marco Zangrando (ORCID: https://orcid.org/0000-0001-8860-3962)
- Piero Decleva (ORCID: https://orcid.org/0000-0002-7322-887X)
- Nitish Pal (ORCID: https://orcid.org/0000-0002-0068-679X)
- M. Danailov (ORCID: https://orcid.org/0000-0002-1888-1331)
- Michele Devetta (ORCID: https://orcid.org/0000-0002-3806-3475)
- Michael S. Schuurman (ORCID: https://orcid.org/0000-0002-0922-9034)
- Richard J. Squibb (ORCID: https://orcid.org/0000-0001-6708-8631)
- C. Vozzi (ORCID: https://orcid.org/0000-0002-0212-0191)
- Ruaridh Forbes (ORCID: https://orcid.org/0000-0003-2097-5991)
- Russell S. Minns (ORCID: https://orcid.org/0000-0001-6775-2977)
- P. Piseri (ORCID: https://orcid.org/0000-0001-8611-4735)
- D.M.P. Holland (ORCID: https://orcid.org/0000-0003-1351-605X)
- Kevin C. Prince (ORCID: https://orcid.org/0000-0002-5416-7354)
- Davide Faccialà (ORCID: https://orcid.org/0000-0002-5072-0394)
- Bruno Nunes Cabral Tenorio (ORCID: https://orcid.org/0000-0002-9702-998X)
- Sonia Coriani (ORCID: https://orcid.org/0000-0002-4487-897X)
- R. Feifel (ORCID: https://orcid.org/0000-0001-5234-3935)
- Alberto Simoncig (ORCID: https://orcid.org/0000-0002-4471-5927)
- Alexander Demidovich (ORCID: https://orcid.org/0000-0003-2355-2257)
- Carlo Callegari (ORCID: https://orcid.org/0000-0001-5491-7752)
- Alexander Darius Brynes (ORCID: https://orcid.org/0000-0003-2343-7566)
- Matteo Bonanomi
- Henry J. Thompson
Institutions
- Quantum Technologies (Sweden) (SE)
- Technical University of Denmark (DK)
Publication Details
- Journal
- Journal of Physics B Atomic Molecular and Optical Physics
- Published
- 2024-09-23
- DOI
- https://doi.org/10.1088/1361-6455/ad7e89
- Citations
- 3
- Primary Topic
- Advanced Chemical Physics Studies
- Type
- article
- Field-Weighted Citation Impact
- 1.01
Funders
- U.S. Department of Energy
- Leverhulme Trust
- University of Southampton
- European Commission
- Ministero dell’Istruzione, dell’Università e della Ricerca
- Knut och Alice Wallenbergs Stiftelse
- Vetenskapsrådet
- Office of Science
- Engineering and Physical Sciences Research Council
- Science and Technology Facilities Council
- Basic Energy Sciences
- Chemical Sciences, Geosciences, and Biosciences Division
- EPSRC Centre for Doctoral Training in Technology Enhanced Chemical Synthesis
- SLAC National Accelerator Laboratory