September 3, 2020 12:00 - 1:30
LEAPS - the League of European Accelerator-based Photon Sources - is a strategic consortium of Synchrotron Radiation and Free Electron Laser (FEL) user facilities.
Over the last decades, high-flux and high repetition-rate accelerator-based photon sources have revolutionized a myriad of fundamental, applied and industrial sciences: the absolutely impressive and never-ending improvements of brightness, spectral range and degree of spatial and temporal coherence and resolution of the sources have deepened the understanding of electronic and structural properties of matter through element specific, chemical and spin selective probes. As a consequence, materials characterization has been developing towards increasing complexity regarding dimensionality, concentration and extreme or ambient environments.
Combining femtosecond X-ray pulses with coherence and enormous peak brightness FELs have now enabled studies of a broad class of dynamic phenomena in matter that crosses many scientific disciplines and have led to major breakthroughs in the last few years. The ability of FELs to follow the steps of a chemical cycle or reaction like in a slow-motion movie will help to better understand natural or technical chemical processes, and push the development of original experimental strategies to study non-equilibrium behavior of matter at the femtosecond-nanometer time-length scales.
The session we propose will focus on the contribution of accelerator-based photon sources on three important subjects: (i) the new regime of X-ray matter interactions with ultrashort very intense X-ray pulses, (ii) the new potential of coherent imaging and scattering for answering questions about nano dynamics in complex materials and (iii) the unique possibility to stimulate and probe nonlinear phenomena that are at the heart of conversion of light into other forms of energy, relevant to photovoltaics, magnetism and phase transitions in correlated materials."
on site speaker
Ecole Polytechnique Fédérale de Lausanne (EPFL)
Max-Born Institute Berlin
on site convenor
on site speaker
on site moderator
Elettra Sincrotrone Trieste