Alber, Ina ; Sigle, Wilfried ; Müller, Sven ; Neumann, Reinhard ; Picht, Oliver ; Rauber, Markus ; Aken, Peter A. van ; Toimil-Molares, Maria Eugenia (2011)
Visualization of Multipolar Longitudinal and Transversal Surface Plasmon Modes in Nanowire Dimers.
In: ACS Nano, 5 (12)
doi: 10.1021/nn2035044
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
We study the transversal and longitudinal localized surface plasmon resonances in single nanowires and nanowire dimers excited by the fast traveling electron beam in a transmission electron microscope equipped with high-resolution electron energy-loss spectroscopy. Bright and dark longitudinal modes up to the fifth order are resolved on individual metallic nanowires. On nanowire dimers, mode splitting into bonding and antibonding is measured up to the third order for several dimers with various aspect ratio and controlled gap size. We observe that the electric field maxima of the bonding modes are shifted toward the gap, while the electric field maxima of the antibonding modes are shifted toward the dimer ends. Finally, we observe that the transversal mode is not detected in the region of the dimer gap and decays away from the rod more rapidly than the longitudinal modes.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2011 |
| Autor(en): | Alber, Ina ; Sigle, Wilfried ; Müller, Sven ; Neumann, Reinhard ; Picht, Oliver ; Rauber, Markus ; Aken, Peter A. van ; Toimil-Molares, Maria Eugenia |
| Art des Eintrags: | Bibliographie |
| Titel: | Visualization of Multipolar Longitudinal and Transversal Surface Plasmon Modes in Nanowire Dimers |
| Sprache: | Englisch |
| Publikationsjahr: | 27 Dezember 2011 |
| Verlag: | ACS Publications |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | ACS Nano |
| Jahrgang/Volume einer Zeitschrift: | 5 |
| (Heft-)Nummer: | 12 |
| DOI: | 10.1021/nn2035044 |
| Kurzbeschreibung (Abstract): | We study the transversal and longitudinal localized surface plasmon resonances in single nanowires and nanowire dimers excited by the fast traveling electron beam in a transmission electron microscope equipped with high-resolution electron energy-loss spectroscopy. Bright and dark longitudinal modes up to the fifth order are resolved on individual metallic nanowires. On nanowire dimers, mode splitting into bonding and antibonding is measured up to the third order for several dimers with various aspect ratio and controlled gap size. We observe that the electric field maxima of the bonding modes are shifted toward the gap, while the electric field maxima of the antibonding modes are shifted toward the dimer ends. Finally, we observe that the transversal mode is not detected in the region of the dimer gap and decays away from the rod more rapidly than the longitudinal modes. |
| Freie Schlagworte: | transversal surface plasmon resonance, longitudinal surface plasmon resonances, bonding multipol order modes, antibonding multipol order modes, electron energy-loss spectroscopy, nanowire dimer synthesis |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialanalytik 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Ionenstrahlmodifizierte Materialien |
| Hinterlegungsdatum: | 08 Mär 2012 16:17 |
| Letzte Änderung: | 19 Mär 2024 07:16 |
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