Fig.1-19 Images of melt ejection and temperature profiles on the top surface during QCW laser irradiation
The laser was set to a 10-ms pulse width, 1.6-kW peak power, 10-Hz repetition rate, and 1.1-mm beam-spot diameter. t0 indicated the instant of laser irradiation. (a)–(f): High-speed images were taken by a high-speed camera. (g) and (h): Temperature profiles at the top surface were taken by thermography.
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