Szczegóły publikacji
Opis bibliograficzny
Ultrafast laser-induced dynamics of non-equilibrium electron spill-out in nanoplasmonic bilayers / Artur Avdizhiyan, Weronika JANUS, Marcin SZPYTMA, Tomasz ŚLĘZAK, Marek PRZYBYLSKI, Maciej CHROBAK, Vladimir Roddatis, Andrzej Stupakiewicz, Ilya Razdolski // Nano Letters ; ISSN 1530-6984. — 2024 — vol. 24 iss. 1, s. 466–471. — Bibliogr. s. 470–471, Abstr. — Publikacja dostępna online od: 2023-12-27. — M. Chrobak - dod. afiliacja: Academic Centre for Materials and Nanotechnology AGH
Autorzy (9)
- Avdizhiyan Artur
- AGHJanus Weronika
- AGHSzpytma Marcin
- AGHŚlęzak Tomasz
- AGHPrzybylski Marek
- AGHChrobak Maciej
- Roddatis Vladimir
- Stupakiewicz Andrzej
- Razdolski Ilya
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 151899 |
|---|---|
| Data dodania do BaDAP | 2024-03-07 |
| Tekst źródłowy | URL |
| DOI | 10.1021/acs.nanolett.3c04318 |
| Rok publikacji | 2024 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Nano Letters |
Abstract
Contemporary quantum plasmonics capture subtle corrections to the properties of plasmonic nano-objects in equilibrium. Here, we demonstrate non-equilibrium spill-out redistribution of the electronic density at the ultrafast time scale. As revealed by time-resolved 2D spectroscopy of nanoplasmonic Fe/Au bilayers, an injection of the laser-excited non-thermal electrons induces transient electron spill-out thus changing the plasma frequency. The response of the local electronic density switches the electronic density behavior from spill-in to strong (an order of magnitude larger) spill-out at the femtosecond time scale. The superdiffusive transport of hot electrons and the lack of a direct laser heating indicate significantly non-thermal origin of the underlying physics. Our results demonstrate an ultrafast and non-thermal way to control surface plasmon dispersion through transient variations of the spatial electron distribution at the nanoscale. These findings expand quantum plasmonics into previously unexplored directions by introducing ultrashort time scales in the non-equilibrium electronic systems.