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3 October 2022 Ultrafast dynamics of plasmon- and photon-induced hot carriers in energy and momentum space
Benjamin Stadtmueller
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Proceedings Volume PC12197, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XX; PC121971C (2022) https://doi.org/10.1117/12.2631594
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States
Abstract
Photon- and plasmon-induced hot carriers dominate the ultrafast response of metallic nano- and heterostructures and determine the efficiency of fundamental processes in photochemistry and light-harvesting. Here, we introduce our new approach to disentangle the dynamics of plasmon- and photon-induced hot carriers at metal surfaces by combining time-resolved two-photon photoemission electron microscopy and momentum microscopy. In this way, we can disentangle the momentum space signatures of plasmon- and photon-induced hot carriers of gold flakes by their respective spatial and temporal dynamics. In addition, we will discuss the tuneablity of the ultrafast photon-induced carrier dynamics of metallic bilayer systems in momentum space.
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Benjamin Stadtmueller "Ultrafast dynamics of plasmon- and photon-induced hot carriers in energy and momentum space", Proc. SPIE PC12197, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XX, PC121971C (3 October 2022); https://doi.org/10.1117/12.2631594
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KEYWORDS
Ultrafast phenomena
Carrier dynamics
Heterojunctions
Metals
Microscopy
Photocatalysis
Photochemistry
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