Figure 2
From: Optical limiting properties of surface functionalized nanodiamonds probed by the Z-scan method
Experimental setup used to study the optical limiting behavior. A1 and A2, apertures (12 mm and 20 mm, respectively); BS, beam splitter;ND1 and ND2, neutral density filters; L1, L2 and L3, plano-convex lenses (focal lengths 60 mm, 100 mm and 400 mm, respectively); PD, photodiode.
