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Вид документа : Статья из журнала
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Автор(ы) : Kostyukov, Artem S., Rasskazov, Ilia L., Gerasimov, Valeriy S., Polyutov, Sergey P., Karpov S. V., Ershov, Alexander E.
Заглавие : Multipolar lattice resonances in plasmonic finite-size metasurfaces
Коллективы : Russian Science FoundationRussian Science Foundation (RSF) [19-72-00066]
Место публикации : Photonics. - 2021. - Vol. 8, Is. 4. - Ст.109. - ISSN 2304-6732(eISSN), DOI 10.3390/photonics8040109
Примечания : Cited References: 66. - The reported study was funded by the Russian Science Foundation project number 19-72-00066
Аннотация: Collective lattice resonances in regular arrays of plasmonic nanoparticles have attracted much attention due to a large number of applications in optics and photonics. Most of the research in this field is concentrated on the electric dipolar lattice resonances, leaving higher-order multipolar lattice resonances in plasmonic nanostructures relatively unexplored. Just a few works report exceptionally high-Q multipolar lattice resonances in plasmonic arrays, but only with infinite extent (i.e., perfectly periodic). In this work, we comprehensively study multipolar collective lattice resonances both in finite and in infinite arrays of Au and Al plasmonic nanoparticles using a rigorous theoretical treatment. It is shown that multipolar lattice resonances in the relatively large (up to 6400 nanoparticles) finite arrays exhibit broader full width at half maximum (FWHM) compared to similar resonances in the infinite arrays. We argue that our results are of particular importance for the practical implementation of multipolar lattice resonances in different photonics applications.
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