The University of Southampton
University of Southampton Institutional Repository

Toroidal dipolar excitation and macroscopic electromagnetic properties of metamaterials

Toroidal dipolar excitation and macroscopic electromagnetic properties of metamaterials
Toroidal dipolar excitation and macroscopic electromagnetic properties of metamaterials
The toroidal dipole is a peculiar electromagnetic excitation that cannot be presented in terms of standard electric and magnetic multipoles. A static toroidal dipole has been shown to lead to violation of parity in atomic spectra and many other unusual electromagnetic phenomena. The existence of electromagnetic resonances of toroidal nature was experimentally demonstrated only recently, first in the microwave metamaterials, and then at optical frequencies, where they could be important in spectroscopy analysis of a wide class of media with constituents of toroidal symmetry, such as complex organic molecules, fullerenes, bacteriophages, etc. Despite the experimental progress in studying toroidal resonances, no direct link has yet been established between microscopic toroidal excitations and macroscopic scattering characteristics of the medium. To address this essential gap in the electromagnetic theory, we have developed an analytical approach for calculating the transmissivity and reflectivity of thin slabs of materials that exhibit toroidal dipolar excitations.
1550-235X
Savinov, V.
147c7954-4636-4438-a305-cd78539f7c0a
Fedotov, V.A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Savinov, V.
147c7954-4636-4438-a305-cd78539f7c0a
Fedotov, V.A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6

Savinov, V., Fedotov, V.A. and Zheludev, N.I. (2014) Toroidal dipolar excitation and macroscopic electromagnetic properties of metamaterials. Physical Review B, 89 (20). (doi:10.1103/PhysRevB.89.205112).

Record type: Article

Abstract

The toroidal dipole is a peculiar electromagnetic excitation that cannot be presented in terms of standard electric and magnetic multipoles. A static toroidal dipole has been shown to lead to violation of parity in atomic spectra and many other unusual electromagnetic phenomena. The existence of electromagnetic resonances of toroidal nature was experimentally demonstrated only recently, first in the microwave metamaterials, and then at optical frequencies, where they could be important in spectroscopy analysis of a wide class of media with constituents of toroidal symmetry, such as complex organic molecules, fullerenes, bacteriophages, etc. Despite the experimental progress in studying toroidal resonances, no direct link has yet been established between microscopic toroidal excitations and macroscopic scattering characteristics of the medium. To address this essential gap in the electromagnetic theory, we have developed an analytical approach for calculating the transmissivity and reflectivity of thin slabs of materials that exhibit toroidal dipolar excitations.

Full text not available from this repository.

More information

Published date: 14 May 2014
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 365011
URI: https://eprints.soton.ac.uk/id/eprint/365011
ISSN: 1550-235X
PURE UUID: 1ab1db33-3938-4f8e-9f44-297415068653
ORCID for V. Savinov: ORCID iD orcid.org/0000-0001-7203-7222
ORCID for N.I. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 20 May 2014 09:49
Last modified: 03 Dec 2019 02:03

Export record

Altmetrics

Contributors

Author: V. Savinov ORCID iD
Author: V.A. Fedotov
Author: N.I. Zheludev ORCID iD

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×