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首页> 外文期刊>Applied Surface Science >Drilling enhancement by nanosecond-nanosecond collinear dual-pulse laser ablation of titanium in vacuum
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Drilling enhancement by nanosecond-nanosecond collinear dual-pulse laser ablation of titanium in vacuum

机译：纳秒纳秒共线双脉冲激光烧蚀钛在真空中的钻孔增强

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Laser ablation of titanium in vacuum was performed using single- and dual-pulse regime in order to study crater formation. Crater profiles were analyzed by optical microscopy. It was found that the repetition-rate plays an important role in a process of laser ablation. The drilling is most effective for the highest repetition-rate. For the same total number of laser pulses clear drilling enhancement was achieved by dual-pulse regime of ablation in comparison to single-pulse regime. The strongest ablation rate in dual-pulse regime was achieved for the delay time between the pulses τ = 370 ns. Results are discussed in terms of decreased ablation threshold due to continuous heating of the target during the experiment.
机译：为了研究陨石坑的形成，在真空中使用单脉冲和双脉冲方案对钛进行了激光烧蚀。通过光学显微镜分析了火山口的轮廓。发现重复率在激光烧蚀过程中起重要作用。钻孔对于最高的重复率是最有效的。对于相同数量的激光脉冲，与单脉冲方式相比，双脉冲烧蚀方式实现了清晰的钻孔增强。对于脉冲τ= 370 ns之间的延迟时间，实现了双脉冲方案中最强的烧蚀率。关于由于实验过程中靶材连续加热而导致的消融阈值降低的讨论结果。

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