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Вид документа : Статья из журнала
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Автор(ы) : Zakomirnyi, Vadim, I, Karpov S. V., Agren, Hans, Rasskazov, Ilia L.
Заглавие : Collective lattice resonances in disordered and quasi-random all-dielectric metasurfaces
Коллективы : Russian Foundation for Basic Research (RFBR) [18-42-240013]; Russian Science Foundation (RSF) [18-13-00363]; Siberian Federal University (SibFU) [3.8896.2017]
Место публикации : J. Opt. Soc. Am. B. - 2019. - Vol. 36, Is. 7. - P.E21-E29. - ISSN 0740-3224, DOI 10.1364/JOSAB.36.000E21. - ISSN 1520-8540(eISSN)
Примечания : Cited References: 91. - Russian Foundation for Basic Research (RFBR) (18-42-240013); Russian Science Foundation (RSF) (18-13-00363); Siberian Federal University (SibFU) (3.8896.2017).
Предметные рубрики: PLASMON RESONANCES
NANOPARTICLE ARRAY
MODES
GOLD
NANOPHOTONICS
Аннотация: Collective lattice resonances in disordered 2D arrays of spherical Si nanoparticles (NPs) have been thoroughly studied within the framework of the coupled dipole approximation. Three types of defects have been analyzed: positional disorder, size disorder, and quasi-random disorder. We show that the positional disorder strongly suppresses either the electric dipole (ED) or the magnetic dipole (MD) coupling, depending on the axis along which the NPs are shifted. Contrarily, size disorder strongly affects only the MD response, while the ED resonance can be almost intact, depending on the lattice configuration. Finally, random removing of NPs from an ordered 2D lattice reveals a quite surprising result: hybridization of the ED and MD resonances with lattice modes remains observable even in the case of random removing of up to 84% of the NPs from the ordered array. The reported results could be important for rational design and utilization of metasurfaces, solar cells, and other alldielectric photonic devices. (C) 2019 Optical Society of America
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