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Singularities in the flying electromagnetic doughnuts

Singularities in the flying electromagnetic doughnuts
Singularities in the flying electromagnetic doughnuts
Flying doughnuts (FDs) are exact propagating solutions of Maxwell equations in the form of single-cycle, space-time non-separable toroidal pulses. Here we review their properties and reveal the existence of a complex and robust fine topological structure. In particular, the electric and magnetic fields of the FD pulse vanish across a number of planes, spherical shells and rings, and display a number of point singularities including saddle points and vortices. Moreover, the instantaneous Poynting vector of the field exhibits a large number of singularities, which are often accompanied by extended areas energy backflow.
Zdagkas, Apostolos
658615f8-0bc6-429b-becc-a88fd27a5686
Papasimakis, Nikitas
f416bfa9-544c-4a3e-8a2d-bc1c11133a51
Savinov, Vassili
147c7954-4636-4438-a305-cd78539f7c0a
Dennis, Mark R.
adcdb4e0-470c-4e4d-80d3-0d4e6890ac30
Zheludev, Nikolai
32fb6af7-97e4-4d11-bca6-805745e40cc6
Zdagkas, Apostolos
658615f8-0bc6-429b-becc-a88fd27a5686
Papasimakis, Nikitas
f416bfa9-544c-4a3e-8a2d-bc1c11133a51
Savinov, Vassili
147c7954-4636-4438-a305-cd78539f7c0a
Dennis, Mark R.
adcdb4e0-470c-4e4d-80d3-0d4e6890ac30
Zheludev, Nikolai
32fb6af7-97e4-4d11-bca6-805745e40cc6

Zdagkas, Apostolos, Papasimakis, Nikitas, Savinov, Vassili, Dennis, Mark R. and Zheludev, Nikolai (2019) Singularities in the flying electromagnetic doughnuts. Nanophotonics. (doi:10.1515/nanoph-2019-0101.).

Record type: Article

Abstract

Flying doughnuts (FDs) are exact propagating solutions of Maxwell equations in the form of single-cycle, space-time non-separable toroidal pulses. Here we review their properties and reveal the existence of a complex and robust fine topological structure. In particular, the electric and magnetic fields of the FD pulse vanish across a number of planes, spherical shells and rings, and display a number of point singularities including saddle points and vortices. Moreover, the instantaneous Poynting vector of the field exhibits a large number of singularities, which are often accompanied by extended areas energy backflow.

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Accepted/In Press date: 29 May 2019
e-pub ahead of print date: 22 June 2019

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Local EPrints ID: 431922
URI: https://eprints.soton.ac.uk/id/eprint/431922
PURE UUID: d5055ec7-7b19-475e-b91b-0a2d214a3f8a
ORCID for Apostolos Zdagkas: ORCID iD orcid.org/0000-0002-1734-9722
ORCID for Nikitas Papasimakis: ORCID iD orcid.org/0000-0002-6347-6466
ORCID for Vassili Savinov: ORCID iD orcid.org/0000-0001-7203-7222
ORCID for Nikolai Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

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Date deposited: 21 Jun 2019 16:30
Last modified: 19 Nov 2019 02:00

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Contributors

Author: Vassili Savinov ORCID iD
Author: Mark R. Dennis

University divisions

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