Figure 12
(a) Intensity of the seeding radiation as a function of the chicane delay from FBD theory for the same parameters as that of Fig. 11. The electron beam (blue dotted line) has an FWHM duration of 30 fs and a chicane delay of 40 fs. (b) The spectrum of the seeding radiation as covered by the electron beam that is overlapped with many wakes from FBD, which shows two separate peaks with an energy separation of 0.17 eV. |