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In view of X-ray Free Electron Laser (XFEL) intensity prospects, we reviewed the past and recent work in view of amplification of powerful XFEL laser pulse to achieve intensity in the regime of high field science. We report here some of the relevant work investigated in this field and predicted further scalings and possibilities for XFEL pulse amplification.
An electromagnetic solitary structure
in attosecond regime is identified, costreaming with electron bunch. It is
observed via nonlinear process of Self-Thomson backscattering of an ultra-intense laser from thin foil
target. The process is termed as Self-Thomson Backscattering since the counter
propagating electron sheets are generated by the drive laser itself. The
radiation pressure acceleration model is considered for the interaction of a
super-intense linearly polarized laser pulse with a thin foil in
one-dimensional (1D) particle-in-cell (PIC) simulations.