Anapole mode excitation in novel perforated all-dielectric metamaterials

TL;DR

This paper introduces a simple silicon-based perforated metamaterial that excites anapole modes through multipolar interference, offering potential for advanced nanophotonic applications.

Contribution

It presents a novel, easy-to-fabricate all-dielectric metamaterial design that supports nonradiating anapole modes via multipolar interactions.

Findings

Demonstrates nonradiating anapole mode excitation in silicon metamaterials.

Proposes a fabrication-friendly design without complex multistep processes.

Highlights potential applications in nanophotonics and plasmonics.

Abstract

In this paper, we concern on nonradiating properties of novel silicon metamaterials due to multipolar interaction. Destructive interference of electric dipole moment and the next term of multipolar decomposition - toroidal dipole moment, leads to nonradiating anapole mode, which is nowadays widely studying among electrodynamic phenomena. Therefore, we propose technically simple metamaterial design, which does not demand multistep fabrication. This kind of metamaterial is the promising in nanophotonics and plasmonics due to subtle sensing, nonradiative data transfer, Aharonov-Bohm effect and other demonstrations.