We investigate the femtosecond laser–matter interaction for a tungsten
carbide with 10% of cobalt. A femtosecond laser (1030 nm) with a pulse
duration of 400 fs was used. For cumulated fluences between 1.4 and
4
J
/
c
m
2
, laser-induced periodic surface
structures (LIPSS) could be produced with a low ablation rate. LIPSS
had a spatial period of 665 nm and an amplitude of 225 nm. The
athermal ablation threshold fluence ranged from 0.35 to
11
J
/
c
m
2
in cumulated fluence for a range
between 1 and 100 pulses. Thus, dimples could be fabricated without
any thermal effects. In addition, the incubation coefficient and
optical penetration depth of tungsten carbide were determined. They
were equal to 0.79 and 19 nm, respectively.
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