Fig. 2.

Retrieved magnetic fields and current density maps. (A and B) show ${\int B}_{x}dz$ and $\int B_{y}dz$, respectively, for the 10 ps frame. The current density calculated using these magnetic fields is shown in (C) by the color scale, whereas the arrows show the vector magnetic field ${\mathbf{B}}_{\perp }=\widehat{x}{B}_x+\widehat{y}{B}_y$. The corresponding results for the 63.3 ps frame are shown in (D–F).