Linear accelerator-based free-electron lasers (FELs) are the leading source of fully coherent
X-rays with ultra-high peak powers and ultra-short pulse lengths. Current X-ray FEL facilities …

A simple, efficient scheme was developed to obtain near-gigaelectronvolt electron beams
with energy spreads of few per-mille level in a single-stage laser wakefield accelerator …

During the past two decades of research, the ultra-relativistic beam-driven plasma wakefield
accelerator (PWFA) concept has achieved many significant milestones. These include the …

The availability of intense, ultrashort coherent radiation sources in the infrared region of the
spectrum is enabling the generation of attosecond X-ray pulses via high-harmonic …

We present the experimental demonstration of density downramp injection at a gas-dynamic
shock in a beam-driven plasma accelerator. The ultrashort driver electron beam with a peak …

We present experimental results on a plasma wakefield accelerator (PWFA) driven by high-
current electron beams from a laser wakefield accelerator (LWFA). In this staged setup …

Owing to their ultra-high accelerating gradients, combined with injection inside micrometer-
scale accelerating wakefield buckets, plasma-based accelerators hold great potential to …

Density downramp injection has been demonstrated to be an elegant and efficient approach
for generating high-quality electron beams in laser wakefield accelerators. Recent studies …

An improved description for nonlinear plasma wakefields with phase velocities near the
speed of light is presented and compared against fully kinetic particle-in-cell simulations …

Availability of relativistically intense, single-cycle, tunable infrared sources will open up new
areas of relativistic nonlinear optics of plasmas, impulse IR spectroscopy and pump-probe …