Figure 5
Sketch of a splitting-and-recombination setup based on diffractive gratings (G1, G2 and G3). In principle the use of gratings instead of diffractive optics would allow to control the wavefront tilt at the sample [sketched by the red segments in (a)], compress in time chirped FEL pulses (b) and split two-colors FEL pulses (c). |