Delayed relaxation of highly excited naphthalene cations

Synopsis The efficiency of energy transfer in ultrafast electronic relaxation of molecules depends strongly on the complex interplay between electronic and nuclear motion. In this study we use wavelength-selected XUV pulses to induce relaxation dynamics of highly excited cationic states of naphthale...

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Bibliographic Details
Published in:Journal of physics. Conference series 2020-01, Vol.1412 (7), p.72044
Main Authors: Reitsma, G, Hummert, J, Dura, J, Loriot, V, Vrakking, M J J, Lépine, F, Kornilov, O
Format: Article
Language:English
Subjects:
Cations
Chemical Sciences
Energy transfer
Engineering Sciences
Naphthalene
Physics
Quantum mechanics
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Summary:Synopsis The efficiency of energy transfer in ultrafast electronic relaxation of molecules depends strongly on the complex interplay between electronic and nuclear motion. In this study we use wavelength-selected XUV pulses to induce relaxation dynamics of highly excited cationic states of naphthalene. Surprisingly, the observed relaxation lifetimes increase with the cationic excitation energy. We propose that this is a manifestation of a quantum mechanical population trapping that leads to delayed relaxation of molecules in the regions with a high density of excited states.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1412/7/072044