Fabrication of SERS Active Surface on Polyimide Sample by Excimer Laser Irradiation

Figure 2

Low magnification SEM pictures on the laser treated spots produced by different excimer laser fluences: 40 (a); 50 (b); 60 (c); and 80 mJ/cm² (d). The marked numbered areas indicate the three distinguishable terrain types.

(a)

(b)

(c)

(d)