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

Li-Xiang Hu, Tong-Pu Yu, Zheng-Ming Sheng, Jorge Vieira, De-Bin Zou, Yan Yin, Paul McKenna, Fu-Qiu Shao

Research output: Contribution to journalArticle

6 Citations (Scopus)

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.
LanguageEnglish
Article number7282
Number of pages9
JournalScientific Reports
Volume8
DOIs
Publication statusPublished - 8 May 2018

Fingerprint

pulses
lasers
laser plasma interactions
electrons
radiation sources
divergence
angular momentum
gamma rays
electron beams
physics
interactions

Keywords

  • attosecond bunches
  • electrons
  • ultrafast physics
  • novel radiation
  • Laguerre-Gaussian laser beams

Cite this

Hu, Li-Xiang ; Yu, Tong-Pu ; Sheng, Zheng-Ming ; Vieira, Jorge ; Zou, De-Bin ; Yin, Yan ; McKenna, Paul ; Shao, Fu-Qiu. / Attosecond electron bunches from a nanofiber driven by Laguerre-Gaussian laser pulses. In: Scientific Reports. 2018 ; Vol. 8.
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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.",
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Attosecond electron bunches from a nanofiber driven by Laguerre-Gaussian laser pulses. / Hu, Li-Xiang; Yu, Tong-Pu; Sheng, Zheng-Ming; Vieira, Jorge; Zou, De-Bin; Yin, Yan; McKenna, Paul; Shao, Fu-Qiu.

In: Scientific Reports, Vol. 8, 7282, 08.05.2018.

Research output: Contribution to journalArticle

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AU - Hu, Li-Xiang

AU - Yu, Tong-Pu

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AU - Yin, Yan

AU - McKenna, Paul

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AB - 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.

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