Home > Publications database > Coherent and incoherent excitation pathways in time-resolved photoemission orbital tomography of CuPc/Cu(001)-2O > print

001     1039746
005     20250220092010.0
037 _ _ |a FZJ-2025-01785
100 1 _ |a Adamkiewicz, Alexa
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245 _ _ |a Coherent and incoherent excitation pathways in time-resolved photoemission orbital tomography of CuPc/Cu(001)-2O
260 _ _ |c 2023
336 7 _ |a Preprint
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336 7 _ |a Electronic Article
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336 7 _ |a preprint
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336 7 _ |a ARTICLE
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520 _ _ |a Time-resolved photoemission orbital tomography (tr-POT) offers unique possibilities for tracing molecular electron dynamics. The recorded pump-induced changes of the angle-resolved photoemission intensities allow to characterize unoccupied molecular states in momentum space and to deduce the incoherent temporal evolution of their population. Here, we show for the example of CuPc/Cu(001)-2O that the method also gives access to the coherent regime and that different excitation pathways can be disentangled by a careful analysis of the time-dependent change of the photoemission momentum pattern. In particular, we demonstrate by varying photon energy and polarization of the pump light, how the incoherent temporal evolution of the LUMO distribution can be distinguished from coherent contributions of the projected HOMO. Moreover, we report the selective excitation of molecules with a specific orientation at normal incidence by aligning the electric field of the pump light along the molecular axis.
536 _ _ |a 5213 - Quantum Nanoscience (POF4-521)
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588 _ _ |a Dataset connected to DataCite
700 1 _ |a Raths, Miriam
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700 1 _ |a Stettner, Monja
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700 1 _ |a Theilen, Marcel
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700 1 _ |a Münster, Lasse
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700 1 _ |a Wenzel, Sabine
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700 1 _ |a Hutter, Mark
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700 1 _ |a Soubatch, Serguei
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700 1 _ |a Kumpf, Christian
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700 1 _ |a Bocquet, Francois C.
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700 1 _ |a Wallauer, Robert
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700 1 _ |a Tautz, Frank Stefan
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|e Corresponding author
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700 1 _ |a Höfer, Ulrich
|0 P:(DE-HGF)0
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|e Corresponding author
856 4 _ |u https://arxiv.org/abs/2311.13212
909 C O |o oai:juser.fz-juelich.de:1039746
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980 _ _ |a preprint
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980 _ _ |a UNRESTRICTED

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