Understanding the elementary steps following ionization in aqueous systems provides a framework for radiation-matter interactions in chemistry and biology. Radiation chemistry has been largely explored on picosecond timescales through pulse radiolysis - a timescale which precludes mechanistic understanding of the birth of reactive species. Synchronized, two-color sub-femtosecond x-ray pulses...
Since the advent of time-resolved spectroscopy based on precision frequency technology of laser sources, it has been considered an alternative way to study dynamic processes in photochemical systems. Recently, we have developed asynchronous and interferometric nonlinear spectroscopy (AI-NS), a spectroscopic technique that combines asynchronously generated laser pulses and interferometric...
The technical ability to generate phase-locked high harmonics of an optical laser by the HHG technique, and to monitor them with the RABBIT scheme opened the way to sub-femtosecond pulses [1,2], and to the investigation of electronic motion in molecules on its natural timescale, decoupled from nuclear motion [3]. The advent of seeded Free Electron Lasers in the XUV range [4], and in particular...
