J. Arthur

TL;DR: These experiments combine stroboscopic techniques that use a high-brightness linear electron accelerator–based x-ray source with pulse-by-pulse timing reconstruction for femtosecond resolution, allowing quantitative characterization of the interatomic potential energy surface of the highly excited solid.

TL;DR: It is shown that, to first order in time, the dynamics are inertial, and constraints on the shape and curvature of the transition-state potential energy surface are placed, pointing toward analogies between this nonequilibrium phase transition and the short-time dynamics intrinsic to equilibrium liquids.

TL;DR: This measurement indirectly determined the arrival time of each x-ray pulse relative to an external pump laser pulse with a time resolution of better than 60 fs rms at the Stanford Linear-Accelerator Center.

TL;DR: In this paper, the physics and characteristic properties of single-pass FELs, as well as current technical developments aiming for fully coherent x-ray radiation pulses with pulse durations in the 100 fs to 100 as range are reviewed.

TL;DR: The Linac Coherent Light Source (LCLS) as mentioned in this paper is a free-electron-laser (FEL) R&D facility operating in the wavelength range 1.5-15 angstrom, which utilizes the SLAC linac and produces sub-picosecond pulses of short wavelength x-rays with very high peak brightness and full transverse coherence.