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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-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/?-ray emission.

SUBMITTER: Hu LX 

PROVIDER: S-EPMC5940694 | biostudies-other | 2018 May

REPOSITORIES: biostudies-other

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

Hu Li-Xiang LX   Yu Tong-Pu TP   Sheng Zheng-Ming ZM   Vieira Jorge J   Zou De-Bin DB   Yin Yan Y   McKenna Paul P   Shao Fu-Qiu FQ  

Scientific reports 20180508 1


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 a  ...[more]

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