Figure 1
From: Plastic deformation as nature of femtosecond laser writing in YAG crystal
Plot of the non-linear transmittances of YAG: Nd crystal (red) and fused silica (blue) against the energy of the incident laser pulse. The dependences are normalized to linear transmittances of the sample (at low energy, less than 20 nJ). The dashed red and blue vertical lines show the pulse energies at the modification thresholds for the crystal and the glass respectively.
