Laser ablation comparison by picosecond pulses train and nanosecond pulse
Laser ablation comparison by picosecond pulses train and nanosecond pulse
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DOI：
10.1088/1612-2011/12/12/126001
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发表时间：
2015-10
影响因子：
1.7
通讯作者：
V. N. Lednev;M. N. Filippov;A. F. Bunkin;S. M. Pershin
中科院分区：
文献类型：
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作者：
V. N. Lednev;M. N. Filippov;A. F. Bunkin;S. M. Pershin
通过一系列皮秒脉冲和纳秒脉冲的激光烧蚀的比较，揭示了激光坑、烧蚀阈值、等离子体尺寸和谱线强度的差异。激光烧蚀与皮秒脉冲的火车导致改善的火山口的质量，而烧蚀的质量下降了30%。观察到皮秒序列烧蚀的激光等离子体尺寸减小，而等离子体光谱中的原子/离子线的强度大2-4倍，表明等离子体中的激发和原子化得到改善。
A comparison of laser ablation by a train of picosecond pulses and nanosecond pulses revealed a difference in laser craters, ablation thresholds, plasma sizes and spectral line intensities. Laser ablation with a train of picosecond pulses resulted in improved crater quality while ablated mass decreased up to 30%. A reduction in laser plasma dimensions for picosecond train ablation was observed while the intensity of atomic/ionic lines in the plasma spectra was greater by a factor of 2–4 indicating an improved excitation and atomization in the plasma.