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KŘÁPEK, V. KONEČNÁ, A. HORÁK, M. LIGMAJER, F. STÖGER-POLLACH, M. HRTOŇ, M. BABOCKÝ, J. ŠIKOLA, T.
Original Title
Independent engineering of individual plasmon modes in plasmonic dimers with conductive and capacitive coupling
Type
journal article in Web of Science
Language
English
Original Abstract
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.
Keywords
plasmonics; localised surface plasmons; electron energy loss spectroscopy; Babinet's principle; hot spot
Authors
KŘÁPEK, V.; KONEČNÁ, A.; HORÁK, M.; LIGMAJER, F.; STÖGER-POLLACH, M.; HRTOŇ, M.; BABOCKÝ, J.; ŠIKOLA, T.
Released
1. 3. 2020
Publisher
WALTER DE GRUYTER GMBH
Location
BERLIN
ISBN
2192-8606
Periodical
Nanophotonics
Year of study
9
Number
3
State
Federal Republic of Germany
Pages from
623
Pages to
632
Pages count
10
URL
https://www.degruyter.com/view/journals/nanoph/9/3/article-p623.xml
Full text in the Digital Library
http://hdl.handle.net/11012/187012
BibTex
@article{BUT163195, author="Vlastimil {Křápek} and Andrea {Konečná} and Michal {Horák} and Filip {Ligmajer} and Michael {Stöger-Pollach} and Martin {Hrtoň} and Jiří {Babocký} and Tomáš {Šikola}", title="Independent engineering of individual plasmon modes in plasmonic dimers with conductive and capacitive coupling", journal="Nanophotonics", year="2020", volume="9", number="3", pages="623--632", doi="10.1515/nanoph-2019-0326", issn="2192-8606", url="https://www.degruyter.com/view/journals/nanoph/9/3/article-p623.xml" }