Polarization-independent anapole response of a trimer-based dielectric metasurface

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autoren

  • Vladimir R. Tuz
  • Andrey B. Evlyukhin

Externe Organisationen

  • International Center of Future Science (ICFS)
  • Kharkov National University
  • Moscow Institute of Physics and Technology
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Details

OriginalspracheEnglisch
Seiten (von - bis)4373-4383
Seitenumfang11
FachzeitschriftNanophotonics
Jahrgang10
Ausgabenummer17
Frühes Online-Datum26 Aug. 2021
PublikationsstatusVeröffentlicht - 1 Dez. 2021

Abstract

The phenomenon of anapole has attracted considerable attention in the field of metamaterials as a possible realization of radiationless objects. We comprehensively study this phenomenon in the cluster-based systems of dielectric particles by considering conditions of anapole manifestation in both single trimers of disk-shaped particles and metamaterial composed on such trimers. Our analytical approach is based on the multipole decomposition method and the secondary multipole decomposition technique. They allow us to associate the anapole with the multipole moments of the trimer and the separate multipole moments of its constitutive particles. The manifestation of anapole in a two-dimensional metamaterial (metasurface) is confirmed by checking the resonant states in the reflected field as well as from the electromagnetic near-field patterns obtained from the full-wave numerical simulation. It is demonstrated that the anapole excitation in trimers results in the polarization-independent suppression of reflection with the resonant enhancement of local electromagnetic fields in the metasurface. Finally, experimental verification of the theoretical results is presented and discussed.

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Polarization-independent anapole response of a trimer-based dielectric metasurface. / Tuz, Vladimir R.; Evlyukhin, Andrey B.
in: Nanophotonics, Jahrgang 10, Nr. 17, 01.12.2021, S. 4373-4383.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Tuz VR, Evlyukhin AB. Polarization-independent anapole response of a trimer-based dielectric metasurface. Nanophotonics. 2021 Dez 1;10(17):4373-4383. Epub 2021 Aug 26. doi: 10.1515/nanoph-2021-0315
Tuz, Vladimir R. ; Evlyukhin, Andrey B. / Polarization-independent anapole response of a trimer-based dielectric metasurface. in: Nanophotonics. 2021 ; Jahrgang 10, Nr. 17. S. 4373-4383.
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AU - Evlyukhin, Andrey B.

N1 - Funding Information: Research funding: National Key Research and Development Program of China (Project No. 2018YFE0119900). The Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy within the Cluster of Excellence PhoenixD (EXC 2122, Project ID 390833453). The development of the secondary multipole decomposition technique has been supported by the Russian Science Foundation (Grant No. 20-12-00343).

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N2 - The phenomenon of anapole has attracted considerable attention in the field of metamaterials as a possible realization of radiationless objects. We comprehensively study this phenomenon in the cluster-based systems of dielectric particles by considering conditions of anapole manifestation in both single trimers of disk-shaped particles and metamaterial composed on such trimers. Our analytical approach is based on the multipole decomposition method and the secondary multipole decomposition technique. They allow us to associate the anapole with the multipole moments of the trimer and the separate multipole moments of its constitutive particles. The manifestation of anapole in a two-dimensional metamaterial (metasurface) is confirmed by checking the resonant states in the reflected field as well as from the electromagnetic near-field patterns obtained from the full-wave numerical simulation. It is demonstrated that the anapole excitation in trimers results in the polarization-independent suppression of reflection with the resonant enhancement of local electromagnetic fields in the metasurface. Finally, experimental verification of the theoretical results is presented and discussed.

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