Research Article

Formation of Porous Structure with Subspot Size under the Irradiation of Picosecond Laser Pulses

Figure 8

SEM images of surface irradiated by laser pulses of 532 nm (a) and 1064 nm (b), with 0.8 J/cm2 and 250 pluses.
301301.fig.008a
(a)
301301.fig.008b
(b)