Multipolar scattering analysis of hybrid metal-dielectric nanostructures

We perform a systematic study showing the evolution of the multipoles along with the spectra for a hybrid metal-dielectric nanoantenna, a Si cylinder and an Ag disk stacked one on top of another, as its dimensions are varied one by one. We broaden our analysis to demonstrate the "magnetic light...

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Bibliographic Details
Published in:arXiv.org 2021-05
Main Authors: Debdatta Ray, Kiselev, Andrei, Martin, Olivier J F
Format: Article
Language:English
Subjects:
Cylinders
Multipoles
Online Access:Get full text
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Summary:We perform a systematic study showing the evolution of the multipoles along with the spectra for a hybrid metal-dielectric nanoantenna, a Si cylinder and an Ag disk stacked one on top of another, as its dimensions are varied one by one. We broaden our analysis to demonstrate the "magnetic light" at energies above 1 eV by varying the height of the Ag on the Si cylinder and below 1 eV by introducing insulating spacing between them. We also explore the appearance of the anapole state along with some exceptionally narrow spectral features by varying the radius of the Ag disk.
ISSN:2331-8422
DOI:10.48550/arxiv.2105.00670