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

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 si...

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Autores principales:	Tuz Vladimir R., Evlyukhin Andrey B.
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	metamaterials mie scattering multipole expansion optical anapole Physics QC1-999
Acceso en línea:	https://doaj.org/article/70fb4c425a1443bbb6c85ccfeb7803c4
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id	oai:doaj.org-article:70fb4c425a1443bbb6c85ccfeb7803c4
record_format	dspace
spelling	oai:doaj.org-article:70fb4c425a1443bbb6c85ccfeb7803c42021-12-05T14:10:56ZPolarization-independent anapole response of a trimer-based dielectric metasurface2192-861410.1515/nanoph-2021-0315https://doaj.org/article/70fb4c425a1443bbb6c85ccfeb7803c42021-08-01T00:00:00Zhttps://doi.org/10.1515/nanoph-2021-0315https://doaj.org/toc/2192-8614The 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.Tuz Vladimir R.Evlyukhin Andrey B.De Gruyterarticlemetamaterialsmie scatteringmultipole expansionoptical anapolePhysicsQC1-999ENNanophotonics, Vol 10, Iss 17, Pp 4373-4383 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	metamaterials mie scattering multipole expansion optical anapole Physics QC1-999
spellingShingle	metamaterials mie scattering multipole expansion optical anapole Physics QC1-999 Tuz Vladimir R. Evlyukhin Andrey B. Polarization-independent anapole response of a trimer-based dielectric metasurface
description	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.
format	article
author	Tuz Vladimir R. Evlyukhin Andrey B.
author_facet	Tuz Vladimir R. Evlyukhin Andrey B.
author_sort	Tuz Vladimir R.
title	Polarization-independent anapole response of a trimer-based dielectric metasurface
title_short	Polarization-independent anapole response of a trimer-based dielectric metasurface
title_full	Polarization-independent anapole response of a trimer-based dielectric metasurface
title_fullStr	Polarization-independent anapole response of a trimer-based dielectric metasurface
title_full_unstemmed	Polarization-independent anapole response of a trimer-based dielectric metasurface
title_sort	polarization-independent anapole response of a trimer-based dielectric metasurface
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/70fb4c425a1443bbb6c85ccfeb7803c4
work_keys_str_mv	AT tuzvladimirr polarizationindependentanapoleresponseofatrimerbaseddielectricmetasurface AT evlyukhinandreyb polarizationindependentanapoleresponseofatrimerbaseddielectricmetasurface
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Polarization-independent anapole response of a trimer-based dielectric metasurface

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