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Supertoroidal light pulses as electromagnetic skyrmions propagating in free space

Yijie Shen Orcid Logo, Yaonan Hou Orcid Logo, Nikitas Papasimakis Orcid Logo, Nikolay I. Zheludev

Nature Communications, Volume: 12, Issue: 1

Swansea University Author: Yaonan Hou Orcid Logo

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DOI (Published version): 10.1038/s41467-021-26037-w

Abstract

Topological complex transient electromagnetic fields give access to nontrivial light-matter interactions and provide additional degrees of freedom for information transfer. An important example of such electromagnetic excitations are space-time non-separable single-cycle pulses of toroidal topology,...

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Published in: Nature Communications
ISSN: 2041-1723
Published: Springer Science and Business Media LLC 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa65284
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last_indexed 2024-11-25T14:15:45Z
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spelling 2024-04-10T14:29:34.4646363 v2 65284 2023-12-14 Supertoroidal light pulses as electromagnetic skyrmions propagating in free space 113975f710084997abdb26ad5fa03e8e 0000-0001-9461-3841 Yaonan Hou Yaonan Hou true false 2023-12-14 ACEM Topological complex transient electromagnetic fields give access to nontrivial light-matter interactions and provide additional degrees of freedom for information transfer. An important example of such electromagnetic excitations are space-time non-separable single-cycle pulses of toroidal topology, the exact solutions of Maxwell’s equations described by Hellwarth and Nouchi in 1996 and recently observed experimentally. Here we introduce an extended family of electromagnetic excitation, the supertoroidal electromagnetic pulses, in which the Hellwarth-Nouchi pulse is just the simplest member. The supertoroidal pulses exhibit skyrmionic structure of the electromagnetic fields, multiple singularities in the Poynting vector maps and fractal-like distributions of energy backflow. They are of interest for transient light-matter interactions, ultrafast optics, spectroscopy, and toroidal electrodynamics. Journal Article Nature Communications 12 1 Springer Science and Business Media LLC 2041-1723 8 10 2021 2021-10-08 10.1038/s41467-021-26037-w COLLEGE NANME Aerospace, Civil, Electrical, and Mechanical Engineering COLLEGE CODE ACEM Swansea University Another institution paid the OA fee The authors are grateful to Janne Ruostekoski for discussions and acknowledge the supports of the MOE Singapore (MOE2016-T3-1-006), the UKs Engineering and Physical Sciences Research Council (grant EP/M009122/1, Funder Id: https://doi.org/10.13039/501100000266), the European Research Council (advanced grant FLEET-786851, Funder Id: https://doi.org/10.13039/501100000781), and the Defense Advanced Research Projects Agency (DARPA) under the Nascent Light Matter Interactions program. 2024-04-10T14:29:34.4646363 2023-12-14T15:59:30.5581953 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering Yijie Shen 0000-0002-6700-9902 1 Yaonan Hou 0000-0001-9461-3841 2 Nikitas Papasimakis 0000-0002-6347-6466 3 Nikolay I. Zheludev 4 65284__29981__8b5c6d05594846a18dbb13b2140733c5.pdf 65284.VOR.pdf 2024-04-10T14:28:35.1779387 Output 5571270 application/pdf Version of Record true This article is licensed under a Creative Commons Attribution 4.0 International License. true eng http://creativecommons.org/licenses/by/4.0/
title Supertoroidal light pulses as electromagnetic skyrmions propagating in free space
spellingShingle Supertoroidal light pulses as electromagnetic skyrmions propagating in free space
Yaonan Hou
title_short Supertoroidal light pulses as electromagnetic skyrmions propagating in free space
title_full Supertoroidal light pulses as electromagnetic skyrmions propagating in free space
title_fullStr Supertoroidal light pulses as electromagnetic skyrmions propagating in free space
title_full_unstemmed Supertoroidal light pulses as electromagnetic skyrmions propagating in free space
title_sort Supertoroidal light pulses as electromagnetic skyrmions propagating in free space
author_id_str_mv 113975f710084997abdb26ad5fa03e8e
author_id_fullname_str_mv 113975f710084997abdb26ad5fa03e8e_***_Yaonan Hou
author Yaonan Hou
author2 Yijie Shen
Yaonan Hou
Nikitas Papasimakis
Nikolay I. Zheludev
format Journal article
container_title Nature Communications
container_volume 12
container_issue 1
publishDate 2021
institution Swansea University
issn 2041-1723
doi_str_mv 10.1038/s41467-021-26037-w
publisher Springer Science and Business Media LLC
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering
document_store_str 1
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description Topological complex transient electromagnetic fields give access to nontrivial light-matter interactions and provide additional degrees of freedom for information transfer. An important example of such electromagnetic excitations are space-time non-separable single-cycle pulses of toroidal topology, the exact solutions of Maxwell’s equations described by Hellwarth and Nouchi in 1996 and recently observed experimentally. Here we introduce an extended family of electromagnetic excitation, the supertoroidal electromagnetic pulses, in which the Hellwarth-Nouchi pulse is just the simplest member. The supertoroidal pulses exhibit skyrmionic structure of the electromagnetic fields, multiple singularities in the Poynting vector maps and fractal-like distributions of energy backflow. They are of interest for transient light-matter interactions, ultrafast optics, spectroscopy, and toroidal electrodynamics.
published_date 2021-10-08T06:42:35Z
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