Fig. 5: Comparison of PIC simulations to linear solution for transverse and longitudinal electric fields.
From: Direct observation of a wakefield generated with structured light
Comparison of the spatial distribution of the transverse electric field Ex between (a) the PIC simulation and (b) the calculated linear solution. c Transverse distribution of Ex for a slice z − ct = 114 μm shown with vertical lines in (a, b). Comparison of the longitudinal electric field Ez for (d) the PIC simulation and (e) the linear solution. f Longitudinal distributions of Ez at the off-axis coordinate x = 23 μm for the PIC (solid blue) and linear (dashed orange), and at the center of the wake for the PIC (green dotted) and linear (purple dashed-dotted). The red color in (a, b, d, e) shows the distribution of the laser pulse intensity.
