Non-linear Processes in Solids: Absorption, Diffraction and Scattering
摘要
In the optical regime, the advent of the laser required the consideration of non-linear interactions with matter beginning in the 1960s. Over the years they have led to the new field of non-linear optics [1, 2] or strong-field physics [3]. In the x-ray regime, non-linear phenomena naturally became important and have been explored with VUV and x-ray free electron lasers.