Investigation of plume dynamics during picosecond laser ablation of H13 steel using high-speed digital holography
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Abstract
Ablation of H13 tool steel using pulse packets with repetition rates of 400 and 1000 kHz and pulse energies of 75 and 44μJ, respectively, is investigated. A drop in ablation efficiency (defined here as the depth per pulse or μm/μJ) is shown to occur when using pulse energies of E
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1432-0630