Abstract
Wave mixing processes, based on coherent nonlinear light-matter interactions, can combine time resolution with energy and wavevector selectivity, and enables to explore dynamics inaccessible by linear methods [1]. Wave mixing experiments have allowed important advances in physics, chemistry and biology, and led to the development of cutting edge technologies. Free Electron Laser (FEL) technology is nowadays developing extremely fast and the possibility to have fully coherent pulses in the Vacuum Ultraviolet and soft x-ray is becoming a reality [2]. FERMI, the FEL in Trieste, is the proof of principle that table-top laser experiments can now be carried out at much shorter wavelengths making possible to probe dynamical processes occurring in molecular and nanostructured materials with an unprecedented time-space (femtosecond-nanometer) resolution.
© 2017 IEEE
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