Femtosecond imaging of spatial deformation of surface plasmon polariton wave packet during resonant interaction with nanocavity
Abstract: The spatiotemporal dynamics of a surface plasmon polariton (SPP) wave packet (WP) that interacts with a plasmonic nanocavity on a metal surface are investigated via femtosecond time-resolved two-photon fluorescence microscopy and numerical calculations. The nanocavity, which consists of a metal–insulator–metal (MIM) laminar structure (longitudinal length: ∼100 nm), behaves as a subwavelength meta-atom possessing discretized eigenenergies. When a chirp-induced femto-second SPP WP is incident on the nanocavity, only the spectral component matching a particular eigenenergy is transmitted to continue propagation on the metal surface. This spectral clipping induces a spatial peak shift in the WP. The shift can be controlled by tuning the eigenenergy or chirp.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Femtosecond imaging of spatial deformation of surface plasmon polariton wave packet during resonant interaction with nanocavity ; volume:11 ; number:7 ; year:2022 ; pages:1321-1333 ; extent:13
Nanophotonics ; 11, Heft 7 (2022), 1321-1333 (gesamt 13)
- Urheber
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Ichiji, Naoki
Otake, Yuka
Kubo, Atsushi
- DOI
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10.1515/nanoph-2021-0740
- URN
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urn:nbn:de:101:1-2022080214222654201597
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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15.08.2025, 07:28 MESZ
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Beteiligte
- Ichiji, Naoki
- Otake, Yuka
- Kubo, Atsushi
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