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5 October 2023 Disentangling the processes of the nanoparticle plasmon decay by the combination of attosecond to picosecond pump-probe experiments
Holger Lange, Andreas Knorr, Kartik Ayyer, Francesca Calegari, Matthias Kling
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Proceedings Volume PC12648, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XXI; PC126480Y (2023) https://doi.org/10.1117/12.2675999
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States
Abstract
By combining optical and x-ray transient data, we access the excited electron system and lattice of gold nanoparticle. The particle expansion starts already with the optical excitation pulse and thus occurs in the kinetic limit of the electron gas excitation. We present a new microscopic, parameter-free model that reproduces the experimental observations and leads to insight into ultrafast phenomena, which are addressed by the sampling of transient optical fields.
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Holger Lange, Andreas Knorr, Kartik Ayyer, Francesca Calegari, and Matthias Kling "Disentangling the processes of the nanoparticle plasmon decay by the combination of attosecond to picosecond pump-probe experiments", Proc. SPIE PC12648, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XXI, PC126480Y (5 October 2023); https://doi.org/10.1117/12.2675999
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KEYWORDS
Gold nanoparticles
Plasmons
Picosecond phenomena
Scattering
X-ray optics
Plasma
Polarization density
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