Role of ablation and incubation processes on surface nanograting formation

摘要

The role of ablation and incubation processes in the formation of surface nanogratings with femtosecond pulses were investigated by measuring ablation thresholds and depth of nanogrooves at different pulse to pulse spacings. Our observations indicated that the nanograting formation essentially relies on a laser ablation process which can be modeled by a simple set of equations.