Details
| Original language | English |
|---|---|
| Pages (from-to) | 4373-4383 |
| Number of pages | 11 |
| Journal | Nanophotonics |
| Volume | 10 |
| Issue number | 17 |
| Early online date | 26 Aug 2021 |
| Publication status | Published - 1 Dec 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.
Keywords
- metamaterials, Mie scattering, multipole expansion, optical anapole
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
- Biotechnology
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Engineering(all)
- Electrical and Electronic Engineering
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In: Nanophotonics, Vol. 10, No. 17, 01.12.2021, p. 4373-4383.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Polarization-independent anapole response of a trimer-based dielectric metasurface
AU - Tuz, Vladimir R.
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).
PY - 2021/12/1
Y1 - 2021/12/1
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.
AB - 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.
KW - metamaterials
KW - Mie scattering
KW - multipole expansion
KW - optical anapole
UR - http://www.scopus.com/inward/record.url?scp=85114394518&partnerID=8YFLogxK
U2 - 10.1515/nanoph-2021-0315
DO - 10.1515/nanoph-2021-0315
M3 - Article
AN - SCOPUS:85114394518
VL - 10
SP - 4373
EP - 4383
JO - Nanophotonics
JF - Nanophotonics
SN - 2192-8606
IS - 17
ER -