Chunguang Jing

TL;DR: In this paper, the authors reviewed the dielectric laser acceleration (DLA) scheme operating at typical laser pulse lengths of 1 to 1 ps, where the laser damage fluences correspond to peak surface electric fields in the Ω{GV}/\mathrm{m} regime.

TL;DR: A new regime of single-surface multipactor was observed during high-power testing of an 11.424-GHz alumina-based dielectric-loaded accelerating structure, in which strong normal and tangential rf electric fields are present and the power flow is parallel to the surface, and more than half of the incident power can be absorbed.

TL;DR: A strong wakefield induced energy modulation in an energy-chirped electron bunch passing through a dielectric-lined waveguide can be effectively converted into a spatial modulation forming microbunches with a periodicity of 0.5-1 ps, capable of driving coherent terahertz radiation.

TL;DR: In this article, the ramped bunch train (RBT) technique was used in a dielectric-based accelerating structure, where a single drive bunch was replaced by two bunches with charge ratio of 1:2.

TL;DR: A successful conversion of this energy modulation into a beam density modulation, and the formation of a series of microbunches with a subpicosecond periodicity by means of magnetic optics (chicane) are demonstrated.