In-Plane Driving of Anapole Resonances in Silicon Disks at Telecom Wavelengths

Conference paper (2020)

Authors

Evelyn Díaz-Escobar Universitat Politécnica de Valencia
E. Pinilla-Cienfuegos Universitat Politécnica de Valencia
T.A. Bauer QN/Kuipers Lab - AS , Kavli institute of nanoscience Delft
Ángela I. Barreda Friedrich Schiller University Jena, Universitat Politécnica de Valencia
Amadeu Griol Universitat Politécnica de Valencia
L. Kuipers Kavli institute of nanoscience Delft, QN/Quantum Nanoscience
A Martinez Universitat Politécnica de Valencia
Research Group
QN/Kuipers Lab (AS) (TU Delft)
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Published Date

2020

Language

English

Reuse Rights

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Faculty

Applied Sciences

Department

QN/Quantum Nanoscience

Research Group

QN/Kuipers Lab

Abstract

Anapole resonances in high-index dielectric nanoparticles arise from the destructive interference between electric and toroidal dipole moments. So far, this mode interference has been solely observed using normal incidence free-space radiation. Here we show that anapole resonances can also arise in silicon disks being excited by an in-plane oriented waveguide. We provide both far-field and near-field measurements at telecom wavelengths which, in good agreement with numerical simulations, show the expected signatures of an anapole resonance. This work paves the way towards the use of the anapole resonances in on-chip silicon photonics.

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