Relativistic interaction of short-pulse lasers with underdense plasmas has recently led to the
emergence of a novel generation of femtosecond x-ray sources. Based on radiation from …

Laser-driven plasma-based accelerators, which are capable of supporting fields in excess of
100 GV∕ m, are reviewed. This includes the laser wakefield accelerator, the plasma beat …

Physics considerations for a next-generation linear collider based on laser-plasma
accelerators are discussed. The ultrahigh accelerating gradient of a laser-plasma …

X-ray spectroscopy is used to obtain single-shot information on electron beam emittance in a
low-energy-spread 0.5 GeV-class laser-plasma accelerator. Measurements of betatron …

Using quadrupole scan measurements we show laser-wakefield accelerated electrons to
have a normalized transverse emittance of 0.21-0.02+ 0.01 π mm mrad at 245 MeV. We …

Ultraintense laser pulses propagating in near-critical density plasmas generate magnetic
dipole vortex structures. In the region of decreasing plasma density, the vortex expands both …

Laser-driven, quasimonoenergetic electron beams of up to∼ 200 MeV in energy have been
observed from steady-state-flow gas cells. These beams emitted within a low-divergence …

Ionization injection in a laser-plasma accelerator is studied analytically and by multi-
dimensional particle-in-cell (PIC) simulations. To enable the production of low energy …

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 …

A laser wakefield acceleration study has been performed in the matched, self-guided,
blowout regime producing 720±50 MeV quasimonoenergetic electrons with a divergence Δ …