Stable attosecond electron bunches from a nanofiber driven by Laguerre-Gaussian lasers

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/$\gamma$-ray emission.

arXiv comment9 pages

References in corpus (8)

• Femtosecond x rays from laser-plasma accelerators
• Generation of 'Super-Ponderomotive' Electrons due to a non-Wakefield interaction between a Laser Pulse and a Longitudinal Electric Field
• Light fan driven by relativistic laser pulse
• Microengineering laser plasma interactions at relativistic intensities
• Laser-like X-ray Sources Based on Optical Reflection from Relativistic Electron Mirror
• Nano-scale ultra-dense Z-pinches formation from laser-irradiated nanowire arrays
• Relativistic Attosecond Electron Bunches from Laser-Illuminated Droplets
• Relativistic acceleration of electrons injected by a plasma mirror into a radially polarized laser beam

Cited by in corpus (1)

• Relativistic laser driven electron accelerator using micro-channel plasma targets