Fragmentation Dynamics of Fluorene Explored Using Ultrafast XUV-Vis Pump-Probe Spectroscopy
| Autor: | Garg, Diksha, Lee, Jason Wai Lung, Tikhonov, Denis, Chopra, Pragya, Steber, Amanda, Lemmens, Alexander, Erk, Benjamin, Allum, Felix, Boll, Rebecca, Cheng, Xuemei, Duesterer, Stefan, Gruet, Sebastien Patrice, He, Lanhai, Heathcote, David, Johny, Melby, Mohammad Kazemi, Mehdi, Koeckert, Hansjochen, Lahl, Jan, Loru, Donatella, Maclot, Sylvain, Mason, Robert, Mueller, Erland, Mullins, Terence, Olshin, Pavel, Passow, Christopher, Peschel, Jasper, Ramm, Daniel, Rompotis, Dimitrios, Trippel, Sebastian, Wiese, Joss, Ziaee, Farzaneh, Bari, Sadia, Burt, Michael, Küpper, Jochen, Rijs, Anouk, Rolles, Daniel, Techert, Simone, Eng-Johnsson, Per, Brouard, Mark, Vallance, Claire, Manschwetus, Bastian, Schnell, Melanie |
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| Přispěvatelé: | BioAnalytical Chemistry, AIMMS |
| Rok vydání: | 2022 |
| Předmět: |
FELIX Molecular Structure and Dynamics
Materials Science (miscellaneous) Biophysics General Physics and Astronomy Physics::Optics free electron laser polycylic aromatic hydrocarbon (PAH) time-resolved spectroscopy velocity-map imaging mass spectrometry Physics::Atomic and Molecular Clusters ddc:530 Physical and Theoretical Chemistry ultrafast dynamics of molecules Mathematical Physics Astrophysics::Galaxy Astrophysics FELIX - Free Electron Lasers for Infrared Experiments |
| Zdroj: | Frontiers in physics 10, 880793 (2022). doi:10.3389/fphy.2022.880793 special issue: "Electronic and Nuclear Quantum Dynamics of Molecules in Intense Laser Fields" Frontiers in Physics, 10(May):880793, 1-12. Frontiers Media S.A. Frontiers in Physics, 10, 1-12 Frontiers in Physics, 10, pp. 1-12 Garg, D, Lee, J W L, Tikhonov, D S, Chopra, P, Steber, A L, Lemmens, A K, Erk, B, Allum, F, Boll, R, Cheng, X, Düsterer, S, Gruet, S, He, L, Heathcote, D, Johny, M, Kazemi, M M, Köckert, H, Lahl, J, Loru, D, Maclot, S, Mason, R, Müller, E, Mullins, T, Olshin, P, Passow, C, Peschel, J, Ramm, D, Rompotis, D, Trippel, S, Wiese, J, Ziaee, F, Bari, S, Burt, M, Küpper, J, Rijs, A M, Rolles, D, Techert, S, Eng-Johnsson, P, Brouard, M, Vallance, C, Manschwetus, B & Schnell, M 2022, ' Fragmentation Dynamics of Fluorene Explored Using Ultrafast XUV-Vis Pump-Probe Spectroscopy ', Frontiers in Physics, vol. 10, no. May, 880793, pp. 1-12 . https://doi.org/10.3389/fphy.2022.880793 |
| ISSN: | 2296-424X |
| DOI: | 10.3389/fphy.2022.880793 |
| Popis: | Frontiers in physics 10, 880793 (2022). doi:10.3389/fphy.2022.880793 special issue: "Electronic and Nuclear Quantum Dynamics of Molecules in Intense Laser Fields" 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. Published by Frontiers Media, Lausanne |
| Databáze: | OpenAIRE |
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