Multi-GeV cascaded laser wakefield acceleration in a hybrid capillary discharge waveguide

Application of Fast Imploding Capillary Discharge for Laser Wakefield Acceleration

A new method of optical guiding for the laser wakefield acceleration using an imploding phase of a gas-filled fast capillary discharge has been proposed. An imploding plasma column has a concave electron density profile in the radial direction just before a stagnation phase driven by a converging current sheet and shock wave. The feasibility of optical guiding of high intensity laser pulses usi...

GeV-scale electron acceleration in a gas-filled capillary discharge waveguide

We report experimental results on laser-driven electron acceleration with low divergence. The electron beam was generated by focussing 750 mJ, 42 fs laser pulses into a gas-filled capillary discharge waveguide at electron densities in the range between 1018 and 1019cm−3. Quasi-monoenergetic electron bunches with energies as high as 500 MeV have been detected, with features reaching up to 1 GeV,...

Generating multi-GeV electron bunches using single stage laser wakefield acceleration in a 3D nonlinear regime

The extraordinary ability of space-charge waves in plasmas to accelerate charged particles at gradients that are orders of magnitude greater than in current accelerators has been well documented. We develop a phenomenological framework for laser wakefield acceleration (LWFA) in the 3D nonlinear regime, in which the plasma electrons are expelled by the radiation pressure of a short pulse laser, ...

Laser Acceleration in Vacuum and Gases with Capillary Waveguide

Near-GeV-energy laser-wakefield acceleration of self-injected electrons in a centimeter-scale plasma channel.

The first three-dimensional, particle-in-cell (PIC) simulations of laser-wakefield acceleration of self-injected electrons in a 0.84 cm long plasma channel are reported. The frequency evolution of the initially 50 fs (FWHM) long laser pulse by photon interaction with the wake followed by plasma dispersion enhances the wake which eventually leads to self-injection of electrons from the channel w...