Fig. 3

Variations of the normalized line intensities of Ga (I) 294.4 nm and Au (I) 312.3 nm as a function of the number of laser pulses at (a) 0.7 \(\:\mu\:\)J and (b) 0.3 \(\:\mu\:\)J.

Variations of the normalized line intensities of Ga (I) 294.4 nm and Au (I) 312.3 nm as a function of the number of laser pulses at (a) 0.7 \(\:\mu\:\)J and (b) 0.3 \(\:\mu\:\)J.