Fig. 3.

Wiggling fields. 3D isosurfaces of (A) electrostatic and (C) magnetostatic fields ($mc{\omega }_0/e$), (B) electron density ($n_c$), and (D) current density ($ec{n}_c$) at the time of 30 ${\tau }_0$ as well as the slices at the planes with respective peak values, where they are obtained by temporally averaging $E_y$, $B_z$, $n_e$, and $J_x$, respectively, over one laser cycle. The corresponding one-dimensional distributions of these fields and densities at $x=21\hspace{0.17em}\mathrm{\mu }\mathrm{m}$ and $z=0.26\hspace{0.17em}\mathrm{\mu }\mathrm{m}$ are shown in E and F.