Figure 2

Images show (a) EME engraving process, (b) EME engraved cell on Cu plated cylinder, (c) laser engraving process and (d) laser engraved cells. Source: (youtube.com/watch?v=5hb3EKQv4ic).

Images show (a) EME engraving process, (b) EME engraved cell on Cu plated cylinder, (c) laser engraving process and (d) laser engraved cells. Source: (youtube.com/watch?v=5hb3EKQv4ic).