Fig. 4

EDS elemental mapping analysis after (a) 1, (b) 2, (c) 5, and (d) 10 laser pulses at a laser pulse energy of 0.7 \(\:\mu\:\)J.

EDS elemental mapping analysis after (a) 1, (b) 2, (c) 5, and (d) 10 laser pulses at a laser pulse energy of 0.7 \(\:\mu\:\)J.