Figure 6
From: Optical limiting properties of surface functionalized nanodiamonds probed by the Z-scan method

Close Z-scan signatures of the DND, DND-H and DND-NH2 at an incident laser fluence of F = 40 J/cm² (I0 = 1010 W/cm²) for the former suspension and F = 4 J/cm² (I0 = 109 W/cm²) for both latter. The solid lines denote the theoretical fits of equation (8).