Independent engineering of individual plasmon modes in plasmonic dimers with conductive and capacitive coupling
| Autor: | Jiří Babocký, Vlastimil Křápek, Filip Ligmajer, Michal Horák, Martin Hrtoň, Michael Stöger-Pollach, Tomáš Šikola, Andrea Konečná |
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| Přispěvatelé: | Czech Science Foundation, European Commission, Ministry of Education, Youth and Sports (Czech Republic), Brno University of Technology |
| Rok vydání: | 2019 |
| Předmět: |
QC1-999
Library science localised surface plasmons Physics::Optics FOS: Physical sciences 02 engineering and technology Applied Physics (physics.app-ph) 01 natural sciences plasmonics 010309 optics hot spot 0103 physical sciences Mesoscale and Nanoscale Physics (cond-mat.mes-hall) media_common.cataloged_instance Babinet's principle Hot spot Electrical and Electronic Engineering European union Electron energy loss spectroscopy Plasmon media_common Physics electron energy loss spectroscopy Condensed Matter - Mesoscale and Nanoscale Physics Babinet’s principle Physics - Applied Physics 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Plasmonics Christian ministry 0210 nano-technology Biotechnology |
| Zdroj: | Nanophotonics. 2020, vol. 9, issue 3, p. 623-632. Nanophotonics, Vol 9, Iss 3, Pp 623-632 (2019) Nanophotonics Digital.CSIC. Repositorio Institucional del CSIC instname |
| DOI: | 10.48550/arxiv.1905.09210 |
| Popis: | We revisit plasmon modes in nanoparticle dimers with conductive or insulating junction resulting in conductive or capacitive coupling. In our study, which combines electron energy loss spectroscopy, optical spectroscopy, and numerical simulations, we show the coexistence of strongly and weakly hybridised modes. While the properties of the former ones strongly depend on the nature of the junction, the properties of the latter ones are nearly unaffected. This opens up a prospect for independent engineering of individual plasmon modes in a single plasmonic antenna. In addition, we show that Babinet’s principle allows to engineer the near field of plasmon modes independent of their energy. Finally, we demonstrate that combined electron energy loss imaging of a plasmonic antenna and its Babinet-complementary counterpart allows to reconstruct the distribution of both electric and magnetic near fields of localised plasmon resonances supported by the antenna, as well as charge and current antinodes of related charge oscillations. We acknowledge the support by the Czech Science Foundation (grant 17-25799S, Funder Id: http://dx.doi.org/10.13039/501100001824); European Union’s Horizon 2020 (project SINNCE, no. 810626, Funder Id: http://dx.doi.org/10.13039/100010684); Ministry of Education, Youth and Sports of the Czech Republic (projects CEITEC 2020, no. LQ1601, Funder Id: http://dx.doi.org/10.13039/501100001823; and CEITEC Nano RI, no. LM2015041, Funder Id: http://dx.doi.org/10.13039/501100001823); and Brno University of Technology (grant FSI/STI-J-18-5225). |
| Databáze: | OpenAIRE |
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