@inproceedings{fe537a2f0d144877b894fc2670ffe1ad,
title = "Axial Toroidal Dipole Modes in All-Dielectric Trimer Metasurfaces",
abstract = "We demonstrate how to excite a resonant state resembling an axial toroidal dipole in metasurfaces made of particle clusters composed of three dielectric disks (trimers). The toroidal dipole response appears due to a symmetry breaking in the cluster geometry, via an energy release from an electromagnetic trapped (dark) mode. We consider several designs of metasurfaces where an asymmetry is introduced into the cluster by either employing disks of different radii or identical disks with holes. We discuss in detail the effect of different asymmetries in metasurface's geometry on characteristics of the axial toroidal dipole response.",
keywords = "metasurfaces, nanostructures, subwavelength structures, trapped modes",
author = "Kupriianov, {Anton S.} and Tuz, {Vladimir R.} and Khardikov, {Vyacheslav V.} and Wei Han and Kivshar, {Yu S.}",
note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 17th IEEE International Conference on Mathematical Methods in Electromagnetic Theory, MMET 2018 ; Conference date: 02-07-2018 Through 05-07-2018",
year = "2018",
month = sep,
day = "10",
doi = "10.1109/MMET.2018.8460255",
language = "English",
isbn = "9781538654385",
series = "International Conference on Mathematical Methods in Electromagnetic Theory, MMET",
publisher = "IEEE Computer Society",
pages = "274--277",
booktitle = "2018 IEEE 17th International Conference on Mathematical Methods in Electromagnetic Theory, MMET 2018 - Proceedings",
address = "United States",
}