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| Verfasst von: | Boyer, Alexie [VerfasserIn]  |
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| | Hervé, M. [VerfasserIn] |
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| | Despré, Victor [VerfasserIn] |
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| | Castellanos Nash, P. [VerfasserIn] |
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| | Loriot, V. [VerfasserIn] |
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| | Marciniak, A. [VerfasserIn] |
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| | Tielens, A. G. G. M. [VerfasserIn] |
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| | Kuleff, Alexander I. [VerfasserIn] |
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| | Lépine, F. [VerfasserIn] |
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| Titel: | Ultrafast vibrational relaxation dynamics in XUV-excited polycyclic aromatic hydrocarbon molecules |
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| Verf.angabe: | A. Boyer, M. Hervé, V. Despré, P. Castellanos Nash, V. Loriot, A. Marciniak, A.G.G.M. Tielens, A.I. Kuleff, and F. Lépine |
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| E-Jahr: | 2021 |
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| Jahr: | 18 October 2021 |
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| Umfang: | 9 S. |
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| Fussnoten: | Gesehen am 24.12.2021 |
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| Titel Quelle: | Enthalten in: Physical review / X |
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| Ort Quelle: | College Park, Md. : APS, 2011 |
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| Jahr Quelle: | 2021 |
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| Band/Heft Quelle: | 11(2021), 4, Artikel-ID 041012, Seite 1-9 |
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| ISSN Quelle: | 2160-3308 |
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| Abstract: | Unraveling ultrafast molecular processes initiated by energetic radiation provides direct information on the chemical evolution under extreme conditions. A prominent example is interstellar media where complex molecules such as polycyclic aromatic hydrocarbons (PAHs) are excited by energetic photons. Until recently, ultrafast dynamics following such excitations remained largely unexplored due to the lack of relevant technologies. Here, we use time-resolved mass spectrometry combining ultrashort femtosecond XUV and IR pulses, to investigate the dynamics induced by high-energy photon excitation in PAHs. We demonstrate that excited cations relax through a progressive loss of vibrational selectivity, created at the early-stage dynamics, and which represents the first steps of a complete intramolecular vibrational energy redistribution. This process is in competition with the recently revealed correlation-band dynamics. These results might have direct consequences for the development of XUV molecular physics and other fields such as astrochemistry. |
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| DOI: | doi:10.1103/PhysRevX.11.041012 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext ; Verlag: https://doi.org/10.1103/PhysRevX.11.041012 |
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| | Volltext: https://link.aps.org/doi/10.1103/PhysRevX.11.041012 |
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| | DOI: https://doi.org/10.1103/PhysRevX.11.041012 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| K10plus-PPN: | 1783564520 |
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| Verknüpfungen: | → Zeitschrift |
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Ultrafast vibrational relaxation dynamics in XUV-excited polycyclic aromatic hydrocarbon molecules / Boyer, Alexie [VerfasserIn]; 18 October 2021 (Online-Ressource)
