Fig. 4From: Testing of a new Yb:YAG fiber laser system for the removal of graphic vandalism from marbleGraphic representation of two consecutive laser pulses with different combinations of frequency and scan speed. On the right, stereomicroscope image showing the effects of few scans on a black spray paint marble mock-up with 20 kHz at the scan speed of 3 m/s, with a scan size of 15 mm and maximum fill (BF = 0.9 mm)Back to article page