Grigory Golovin

TL;DR: In this article, quasi-monoenergetic Compton X-rays tunable in the range ∼70 keV to > 1 MeV are generated in a laser-driven scheme.

TL;DR: The generation of MeV x rays using an undulator and accelerator that are both driven by the same 100-terawatt laser system is reported, and the x-ray photon energy exceeds the thresholds of fundamental nuclear processes.

TL;DR: In this article, the authors made the first measurements of high-order multiphoton scattering, in which more than 500 near-infrared laser photons were scattered by a single electron into a single X-ray photon.

TL;DR: A novel laser system was developed that separately and independently optimized the optical properties of the two pulses, and mitigated the deleterious effects on beam focusing that generally accompany nonlinear optics at high peak-power levels.

TL;DR: In this paper, the authors report the results of experiments on laser-wakefield acceleration in a novel two-stage gas target with independently adjustable density and atomic-composition profiles, which led to the separation of the processes of electron injection and acceleration and permitted independent control of both.