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Demonstrating Elusive Toroidal Dipolar Response in Metamaterials

Demonstrating Elusive Toroidal Dipolar Response in Metamaterials
Demonstrating Elusive Toroidal Dipolar Response in Metamaterials
Toroidal moments are fundamental electromagnetic excitations that cannot be represented in terms of the standard multipole expansion [1]. They were first considered by Zel’dovich back in 1957 [2], but only recently have become the subject of growing interest owing to their peculiar electromagnetic properties. Electromagnetic interactions with toroidal currents were predicted to disobey such widely accepted principle as the action-reaction equality. Toroidal currents can also form charge-current configurations generating vector potential fields in the absence of radiated electromagnetic waves. Although toroidal moments are held responsible for parity violation in nuclear and particle physics, no direct evidence of their importance for classical electrodynamics has been reported so far. This is because effects associated with toroidal moments in naturally available materials are extremely weak and usually masked by much stronger effects due to conventional electric and magnetic dipole and quadrupole moments.
Savinov, Vassili
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Kaelberer, Thomas
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Papasimakis, Nikitas
f416bfa9-544c-4a3e-8a2d-bc1c11133a51
Rogacheva, Alexandra
189a14b6-d5d9-4a26-b055-c4a7baf2a995
Tsai, Din Ping
29dbf01e-c22a-45a5-95b3-839a185d1779
Zheludev, Nikolay
32fb6af7-97e4-4d11-bca6-805745e40cc6
Savinov, Vassili
147c7954-4636-4438-a305-cd78539f7c0a
Kaelberer, Thomas
b900929b-dc58-4699-a43b-de2c35c3ab40
Papasimakis, Nikitas
f416bfa9-544c-4a3e-8a2d-bc1c11133a51
Rogacheva, Alexandra
189a14b6-d5d9-4a26-b055-c4a7baf2a995
Tsai, Din Ping
29dbf01e-c22a-45a5-95b3-839a185d1779
Zheludev, Nikolay
32fb6af7-97e4-4d11-bca6-805745e40cc6

Savinov, Vassili, Kaelberer, Thomas, Papasimakis, Nikitas, Rogacheva, Alexandra, Tsai, Din Ping and Zheludev, Nikolay (2011) Demonstrating Elusive Toroidal Dipolar Response in Metamaterials. European Quantum Electronics Conference (EQEC), Munich, Germany. 22 - 26 May 2011.

Record type: Conference or Workshop Item (Paper)

Abstract

Toroidal moments are fundamental electromagnetic excitations that cannot be represented in terms of the standard multipole expansion [1]. They were first considered by Zel’dovich back in 1957 [2], but only recently have become the subject of growing interest owing to their peculiar electromagnetic properties. Electromagnetic interactions with toroidal currents were predicted to disobey such widely accepted principle as the action-reaction equality. Toroidal currents can also form charge-current configurations generating vector potential fields in the absence of radiated electromagnetic waves. Although toroidal moments are held responsible for parity violation in nuclear and particle physics, no direct evidence of their importance for classical electrodynamics has been reported so far. This is because effects associated with toroidal moments in naturally available materials are extremely weak and usually masked by much stronger effects due to conventional electric and magnetic dipole and quadrupole moments.

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e-pub ahead of print date: 22 May 2011
Additional Information: EJ5.6
Venue - Dates: European Quantum Electronics Conference (EQEC), Munich, Germany, 2011-05-22 - 2011-05-26
Organisations: Optoelectronics Research Centre, Physics & Astronomy

Identifiers

Local EPrints ID: 341551
URI: https://eprints.soton.ac.uk/id/eprint/341551
PURE UUID: 8d94fc7d-6c5e-415f-8e67-428c4baa937c
ORCID for Vassili Savinov: ORCID iD orcid.org/0000-0001-7203-7222
ORCID for Nikitas Papasimakis: ORCID iD orcid.org/0000-0002-6347-6466
ORCID for Nikolay Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 27 Jul 2012 08:10
Last modified: 23 Aug 2019 00:38

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Contributors

Author: Vassili Savinov ORCID iD
Author: Thomas Kaelberer
Author: Alexandra Rogacheva
Author: Din Ping Tsai

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