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Interferometry for full temporal reconstruction of laser-plasma accelerator-based seeded free electron lasers

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Academic year: 2021

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Figure 1. Schematic of a LPA–based seeded FEL. From one main femtosecond infrared laser unit, two pulses centered at 800 nm are delivered with independent controls
Table 1.Parameters for FEL simulation and modeling.
Figure 2. Simulated spatio-spectral distribution of the radiation at the undulator exit in the near- (left) and far-field(right).(a) and (b) Seed only (P seed 10 kW, Q=0pC),(c)and (d) Spontaneous emission only (P seed 0 W,Q=20pC) and (e), (f)FEL case
Figure 3. (a)Normalized simulated spectrum along the undulator for a charge of 50 pC, with theoretical prediction of the peak wavelength evolution (solid white line)using a starting point z i (dashed line)where the FEL intensity reaches 0.5 times the seed
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