Time-resolved visualization of high-repetition ultrashort pulse laser ablation.

A pump-probe setup including a Robert-cell-type delay stage is calculated and built in the presented study. The goal is to visualize laser beam material interactions upon highly repetitive ultrashort pulse irradiations by shadowgraph imaging, which makes a valuable contribution to clarify the occurring interaction phenomena in this field. Ultrashort laser pulses (=1030; =400) are irradiated onto a bright-rolled stainless steel metal plate (AISI 316).