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

Hu, Li-Xiang and Yu, Tong-Pu and Sheng, Zheng-Ming and Vieira, Jorge and Zou, De-Bin and Yin, Yan and McKenna, Paul and Shao, Fu-Qiu (2018) Attosecond electron bunches from a nanofiber driven by Laguerre-Gaussian laser pulses. Scientific Reports, 8. 7282. ISSN 2045-2322

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    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 sub-femtosecond 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 stable 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.

    Creators(s): Hu, Li-Xiang, Yu, Tong-Pu, Sheng, Zheng-Ming ORCID logoORCID: https://orcid.org/0000-0002-8823-9993, Vieira, Jorge, Zou, De-Bin, Yin, Yan, McKenna, Paul ORCID logoORCID: https://orcid.org/0000-0001-8061-7091 and Shao, Fu-Qiu;
    Item type:Article
    ID code:63769
    Keywords:attosecond bunches, electrons, ultrafast physics, novel radiation, Laguerre-Gaussian laser beams, Physics, Physics and Astronomy(all)
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:17 Apr 2018 15:47
    Last modified:30 Sep 2020 03:02
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/63769
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