Alber, Ina ; Sigle, Wilfried ; Demming-Janssen, Frank ; Neumann, Reinhard ; Trautmann, Christina ; Aken, Peter A. van ; Toimil-Molares, Maria Eugenia (2012)
Multipole surface plasmon resonances in conductively coupled metal nanowire dimers.
In: ACS Nano, 6 (11)
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
We report on the experimental and the theoretical investigation of multipole surface plasmon resonances in metal nanowires conductively connected by small junctions. The influence of a conductive junction on the resonance energies of nanowire dimers was simulated using the finite element method based software CST Microwave Studio and experimentally measured by electron energy-loss spectroscopy in a transmission electron microscope. We extend the analysis of conductively connected structures to higher order multipole modes up to third order, including dark modes. Our results reveal that an increase in junction size does not shift significantly the antibonding modes, but causes a strong blue shift of the bonding modes, leading to an energetic rearrangement of the modes compared to those of a capacitively coupled dimer with similar dimensions.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2012 |
| Autor(en): | Alber, Ina ; Sigle, Wilfried ; Demming-Janssen, Frank ; Neumann, Reinhard ; Trautmann, Christina ; Aken, Peter A. van ; Toimil-Molares, Maria Eugenia |
| Art des Eintrags: | Bibliographie |
| Titel: | Multipole surface plasmon resonances in conductively coupled metal nanowire dimers |
| Sprache: | Englisch |
| Publikationsjahr: | 27 November 2012 |
| Verlag: | ACS Publications |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | ACS Nano |
| Jahrgang/Volume einer Zeitschrift: | 6 |
| (Heft-)Nummer: | 11 |
| URL / URN: | https://doi.org/10.1021/nn303149p |
| Kurzbeschreibung (Abstract): | We report on the experimental and the theoretical investigation of multipole surface plasmon resonances in metal nanowires conductively connected by small junctions. The influence of a conductive junction on the resonance energies of nanowire dimers was simulated using the finite element method based software CST Microwave Studio and experimentally measured by electron energy-loss spectroscopy in a transmission electron microscope. We extend the analysis of conductively connected structures to higher order multipole modes up to third order, including dark modes. Our results reveal that an increase in junction size does not shift significantly the antibonding modes, but causes a strong blue shift of the bonding modes, leading to an energetic rearrangement of the modes compared to those of a capacitively coupled dimer with similar dimensions. |
| Freie Schlagworte: | multipole order surface plasmon, nanowire dimer, conductive junction, electron energy-loss spectroscopy, finite element simulation, bonding mode, antibonding mode |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Ionenstrahlmodifizierte Materialien |
| Hinterlegungsdatum: | 20 Mär 2014 12:59 |
| Letzte Änderung: | 18 Mär 2024 13:32 |
| PPN: | |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum