This report presents the conceptual design of a new European research infrastructure
EuPRAXIA. The concept has been established over the last four years in a unique …

A number of laser facilities coming online all over the world promise the capability of high-
power laser experiments with shot repetition rates between 1 and 10 Hz. Target availability …

We demonstrate a new highly tunable technique for generating meter-scale low density
plasma waveguides. Such guides can enable laser-driven electron acceleration to tens of …

Compact electron accelerators are paramount to next-generation synchrotron light sources
and free-electron lasers, as well as for advanced accelerators at the TeV energy frontier …

The FLASHForward experimental facility is a high-performance test-bed for precision
plasma wakefield research, aiming to accelerate high-quality electron beams to GeV-levels …

We present experiments and numerical simulations which demonstrate that fully ionized, low-
density plasma channels could be formed by hydrodynamic expansion of plasma columns …

We demonstrate optical guiding of high-intensity laser pulses in long, low-density
hydrodynamic optical-field-ionized (HOFI) plasma channels. An axicon lens is used to …

Active plasma lenses have attracted interest in novel accelerator applications due to their
ability to provide large-field-gradient (short focal length), tunable, and radially symmetric …

We demonstrate experimentally that hydrodynamic optical-field-ionized (HOFI) plasma
channels can be generated at kHz-scale pulse repetition rates, in a static gas cell and for an …

Hydrodynamic optically-field-ionized (HOFI) plasma channels up to 100 mm long are
investigated. Optical guiding is demonstrated of laser pulses with a peak input intensity of 6× …