Ming Fang

TL;DR: By designing a structured gas density profile between the dual-stage gas jets to manipulate electron seeding and energy chirp reversal for compressing the energy spread, high-brightness high-energy electron beams from a cascaded laser wakefield accelerator are experimentally produced.

TL;DR: In this paper, the authors proposed a scheme to minimize the energy spread of an electron beam (e-beam) in a cascaded laser wakefield accelerator to the one-thousandth level by inserting a stage to compress its longitudinal spatial distribution.

TL;DR: In this article, a hybrid capillary discharge waveguide formed by injecting low-pressure hydrogen into a pure ablative capillary is presented to supply the stable guiding for multi-GeV laser wakefield acceleration.

TL;DR: In this paper, a hydrogen-filled capillary discharge waveguide made of quartz is used for high-energy laser wakefield acceleration (LWFA) in order to obtain a controllable plasma density and mitigate the ablation as much as possible.

TL;DR: Theoretical analysis and simulations indicate that this method can be used for the generation of coherent EUV and soft X-ray radiation at sub-gigawatt power in a meter-scale undulator (radiator).