Fig. 5

OM cross-section images of the samples (a) SS01, (b) SS02, (c) NC1, (d) NC2, (e) SS03 and (f) UC3. These images were obtained by reflected light in dark field

OM cross-section images of the samples (a) SS01, (b) SS02, (c) NC1, (d) NC2, (e) SS03 and (f) UC3. These images were obtained by reflected light in dark field