Attosecond electron bunches from a nanofiber driven by Laguerre-Gaussian laser pulses

Attosecond electron bunches from a nanofiber driven by Laguerre-Gaussian laser pulses

Abstract Generation of attosecond bunches of energetic electrons offers significant potential from ultrafast physics to novel radiation sources. However, it is still a great challenge to stably produce such electron beams with lasers, since the typical subfemtosecond electron bunches from laser-plas...

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Main Authors: Li-Xiang Hu, Tong-Pu Yu, Zheng-Ming Sheng, Jorge Vieira, De-Bin Zou, Yan Yin, Paul McKenna, Fu-Qiu Shao
Format: Article
Language:English
Published: Nature Publishing Group 2018-05-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-018-25421-9
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spelling doaj-000e94b38cc74e80b4dfc91f6a9530102020-12-08T04:33:50ZengNature Publishing GroupScientific Reports2045-23222018-05-01811910.1038/s41598-018-25421-9Attosecond electron bunches from a nanofiber driven by Laguerre-Gaussian laser pulsesLi-Xiang Hu0Tong-Pu Yu1Zheng-Ming Sheng2Jorge Vieira3De-Bin Zou4Yan Yin5Paul McKenna6Fu-Qiu Shao7Department of Physics, National University of Defense TechnologyDepartment of Physics, National University of Defense TechnologySUPA Department of Physics, University of StrathclydeGoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de LisboaDepartment of Physics, National University of Defense TechnologyDepartment of Physics, National University of Defense TechnologySUPA Department of Physics, University of StrathclydeDepartment of Physics, National University of Defense TechnologyAbstract Generation of attosecond bunches of energetic electrons offers significant potential from ultrafast physics to novel radiation sources. However, it is still a great challenge to stably produce such electron beams with lasers, since the typical subfemtosecond electron bunches from laser-plasma interactions either carry low beam charge, or propagate for only several tens of femtoseconds. Here we propose an all-optical scheme for generating dense attosecond electron bunches via the interaction of an intense Laguerre-Gaussian (LG) laser pulse with a nanofiber. The dense bunch train results from the unique field structure of a circularly polarized LG laser pulse, enabling each bunch to be phase-locked and accelerated forward with low divergence, high beam charge and large beam-angular-momentum. This paves the way for wide applications in various fields, e.g., ultrabrilliant attosecond x/γ-ray emission.https://doi.org/10.1038/s41598-018-25421-9
collection DOAJ
language English
format Article
sources DOAJ
author Li-Xiang Hu
Tong-Pu Yu
Zheng-Ming Sheng
Jorge Vieira
De-Bin Zou
Yan Yin
Paul McKenna
Fu-Qiu Shao
spellingShingle Li-Xiang Hu
Tong-Pu Yu
Zheng-Ming Sheng
Jorge Vieira
De-Bin Zou
Yan Yin
Paul McKenna
Fu-Qiu Shao
Attosecond electron bunches from a nanofiber driven by Laguerre-Gaussian laser pulses
Scientific Reports
author_facet Li-Xiang Hu
Tong-Pu Yu
Zheng-Ming Sheng
Jorge Vieira
De-Bin Zou
Yan Yin
Paul McKenna
Fu-Qiu Shao
author_sort Li-Xiang Hu
title Attosecond electron bunches from a nanofiber driven by Laguerre-Gaussian laser pulses
title_short Attosecond electron bunches from a nanofiber driven by Laguerre-Gaussian laser pulses
title_full Attosecond electron bunches from a nanofiber driven by Laguerre-Gaussian laser pulses
title_fullStr Attosecond electron bunches from a nanofiber driven by Laguerre-Gaussian laser pulses
title_full_unstemmed Attosecond electron bunches from a nanofiber driven by Laguerre-Gaussian laser pulses
title_sort attosecond electron bunches from a nanofiber driven by laguerre-gaussian laser pulses
publisher Nature Publishing Group
series Scientific Reports
issn 2045-2322
publishDate 2018-05-01
description Abstract Generation of attosecond bunches of energetic electrons offers significant potential from ultrafast physics to novel radiation sources. However, it is still a great challenge to stably produce such electron beams with lasers, since the typical subfemtosecond electron bunches from laser-plasma interactions either carry low beam charge, or propagate for only several tens of femtoseconds. Here we propose an all-optical scheme for generating dense attosecond electron bunches via the interaction of an intense Laguerre-Gaussian (LG) laser pulse with a nanofiber. The dense bunch train results from the unique field structure of a circularly polarized LG laser pulse, enabling each bunch to be phase-locked and accelerated forward with low divergence, high beam charge and large beam-angular-momentum. This paves the way for wide applications in various fields, e.g., ultrabrilliant attosecond x/γ-ray emission.
url https://doi.org/10.1038/s41598-018-25421-9
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