Speaker
Description
Ultrafast X-ray spectroscopies (absorption, emission and resonant inelastic X-ray scattering or RIXS) are powerful tools to monitor the photoinduced electronic, spin and structural changes in matter, with element-selectivity. They were developed over the past 25 years and are now firmly established to probe dynamics in (bio)molecular systems and in Materials, either using Synchrotron radiation sources and more frequently since about 25 years, X-ray Free Electron Lasers (XFELs).
Indeed, the advent of XFELs has not only boosted the capabilities of photon-in/photon-out X-ray spectroscopies such as emission or RIXS, but is also enabling the advent of non-linear X-ray spectroscopy and optics. This revolution is akin to what happened in the optical domain with the birth of the laser in the early 1960s.
In this talk, I will present applications of linear and non-linear X-ray spectroscopy to the study of photoinduced phenomena in molecules and proteins, as well as solid materials. In addition, I will present recent work in X-ray natural circular dichroism (XNCD) of molecular systems in solutions and prospects for probing chirality using non-linear X-ray methods.