Frontiers in Physics (May 2022)
Fragmentation Dynamics of Fluorene Explored Using Ultrafast XUV-Vis Pump-Probe Spectroscopy
- D. Garg,
- D. Garg,
- J. W. L. Lee,
- J. W. L. Lee,
- D. S. Tikhonov,
- D. S. Tikhonov,
- P. Chopra,
- P. Chopra,
- A. L. Steber,
- A. L. Steber,
- A. L. Steber,
- A. K. Lemmens,
- A. K. Lemmens,
- B. Erk,
- F. Allum,
- R. Boll,
- X. Cheng,
- X. Cheng,
- S. Düsterer,
- S. Gruet,
- L. He,
- D. Heathcote,
- M. Johny,
- M. Johny,
- M. Johny,
- M. M. Kazemi,
- H. Köckert,
- J. Lahl,
- D. Loru,
- D. Loru,
- S. Maclot,
- S. Maclot,
- R. Mason,
- E. Müller,
- T. Mullins,
- P. Olshin,
- C. Passow,
- J. Peschel,
- D. Ramm,
- D. Rompotis,
- D. Rompotis,
- S. Trippel,
- S. Trippel,
- J. Wiese,
- J. Wiese,
- F. Ziaee,
- S. Bari,
- M. Burt,
- J. Küpper,
- J. Küpper,
- J. Küpper,
- J. Küpper,
- A. M. Rijs,
- D. Rolles,
- S. Techert,
- S. Techert,
- P. Eng-Johnsson,
- M. Brouard,
- C. Vallance,
- B. Manschwetus,
- M. Schnell,
- M. Schnell
Affiliations
- D. Garg
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- D. Garg
- Department of Physics, Universität Hamburg, Hamburg, Germany
- J. W. L. Lee
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- J. W. L. Lee
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, United Kingdom
- D. S. Tikhonov
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- D. S. Tikhonov
- Institute of Physical Chemistry, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
- P. Chopra
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- P. Chopra
- Institute of Physical Chemistry, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
- A. L. Steber
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- A. L. Steber
- Institute of Physical Chemistry, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
- A. L. Steber
- Center for Ultrafast Imaging, Universität Hamburg, Hamburg, Germany
- A. K. Lemmens
- Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, Amsterdam, Netherlands
- A. K. Lemmens
- FELIX Laboratory, Radboud University, Nijmegen, Netherlands
- B. Erk
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- F. Allum
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, United Kingdom
- R. Boll
- European XFEL, Schenefeld, Germany
- X. Cheng
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- X. Cheng
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- S. Düsterer
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- S. Gruet
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- L. He
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- D. Heathcote
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, United Kingdom
- M. Johny
- Department of Physics, Universität Hamburg, Hamburg, Germany
- M. Johny
- Center for Ultrafast Imaging, Universität Hamburg, Hamburg, Germany
- M. Johny
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- M. M. Kazemi
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- H. Köckert
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, United Kingdom
- J. Lahl
- 0Department of Physics, Lund UniversityLund, Sweden
- D. Loru
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- D. Loru
- Institute of Physical Chemistry, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
- S. Maclot
- 0Department of Physics, Lund UniversityLund, Sweden
- S. Maclot
- 1Physics Department, University of Gothenburg, Gothenburg, Sweden
- R. Mason
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, United Kingdom
- E. Müller
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- T. Mullins
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- P. Olshin
- 2Department of Chemistry, College of Natural Sciences, Ulsan National Institute of Science and Technology, Ulsan, South Korea
- C. Passow
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- J. Peschel
- 0Department of Physics, Lund UniversityLund, Sweden
- D. Ramm
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- D. Rompotis
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- D. Rompotis
- European XFEL, Schenefeld, Germany
- S. Trippel
- Center for Ultrafast Imaging, Universität Hamburg, Hamburg, Germany
- S. Trippel
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- J. Wiese
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- J. Wiese
- 3Department of Chemistry, Universität Hamburg, Hamburg, Germany
- F. Ziaee
- 4J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS, United States
- S. Bari
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- M. Burt
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, United Kingdom
- J. Küpper
- Department of Physics, Universität Hamburg, Hamburg, Germany
- J. Küpper
- Center for Ultrafast Imaging, Universität Hamburg, Hamburg, Germany
- J. Küpper
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- J. Küpper
- 3Department of Chemistry, Universität Hamburg, Hamburg, Germany
- A. M. Rijs
- 5Division of BioAnalytical Chemistry, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
- D. Rolles
- 4J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS, United States
- S. Techert
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- S. Techert
- 6Institute for X-Ray Physics, Georg-August-Universität, Göttingen, Germany
- P. Eng-Johnsson
- 0Department of Physics, Lund UniversityLund, Sweden
- M. Brouard
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, United Kingdom
- C. Vallance
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, United Kingdom
- B. Manschwetus
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- M. Schnell
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- M. Schnell
- Institute of Physical Chemistry, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
- DOI
- https://doi.org/10.3389/fphy.2022.880793
- Journal volume & issue
-
Vol. 10
Abstract
We report on the use of extreme ultraviolet (XUV, 30.3 nm) radiation from the Free-electron LASer in Hamburg (FLASH) and visible (Vis, 405 nm) photons from an optical laser to investigate the relaxation and fragmentation dynamics of fluorene ions. The ultrashort laser pulses allow to resolve the molecular processes occurring on the femtosecond timescales. Fluorene is a prototypical small polycyclic aromatic hydrocarbon (PAH). Through their infrared emission signature, PAHs have been shown to be ubiquitous in the universe, and they are assumed to play an important role in the chemistry of the interstellar medium. Our experiments track the ionization and dissociative ionization products of fluorene through time-of-flight mass spectrometry and velocity-map imaging. Multiple processes involved in the formation of each of the fragment ions are disentangled through analysis of the ion images. The relaxation lifetimes of the excited fluorene monocation and dication obtained through the fragment formation channels are reported to be in the range of a few tens of femtoseconds to a few picoseconds.
Keywords
- polycylic aromatic hydrocarbon (PAH)
- time-resolved spectroscopy
- velocity-map imaging mass spectrometry
- ultrafast dynamics of molecules
- free electron laser
