Analysis of melt ejection during long pulsed laser drilling
Zhang Ting-Zhong1, Jia Zhi-Chao1, Cui Hai-Chao2, Zhu De-Hua3, Ni Xiao-Wu1, Lu Jian1, †,
       

(a) Schematic of real time laser drilling observation via the shadowgraphic technique, and (b) the laser pulse waveform with an FWHM of τ being 1 000 μs.