Figure 3
From: Femtosecond laser produced periodic plasma in a colloidal crystal probed by XFEL radiation

Electron energy density distribution in the colloidal crystal at 80 fs (a–c) and 1 ps (d–f) after the start of the IR laser pulse propagation for three different IR laser intensities. The IR laser pulse is coming from the top along the z− direction. Here, we show a projection of the electron energy density along the y-direction.