Figure 1

A momentum-position phase space plot in the laser-forward direction demonstrating the high-momentum peaks characteristic of the ZVP mechanism. The laser amplitude, was set to \({a}_{0}=100\) and the electron density was 50 times critical.

A momentum-position phase space plot in the laser-forward direction demonstrating the high-momentum peaks characteristic of the ZVP mechanism. The laser amplitude, was set to \({a}_{0}=100\) and the electron density was 50 times critical.