论文标题
Bibursts在MHz和GHz脉冲重复速率中进行新型超快激光消融
Novel ultrafast laser ablation by bibursts in the MHz and GHz pulse repetition rates
论文作者
论文摘要
据我们所知，在这里，我们首次报告了高超快速激光消融效率的深入实验研究，用于处理具有单脉冲，MHz-，GHz-和爆发（Biburst）制度的铜和钢。对梁大小优化的机制进行了爆发，双面和单脉冲消融效率的比较，显示了铣削和钻孔处理方法的实际优势和缺点。对于〜1 um光学波长，可实现高效的超短脉冲激光器处理：8.8 um3/uj用于铜钻孔，5.6 um3/uj用于铜研磨，钢铣削的6.9 um3/uj/uj。我们认为，这项研究中收集的大量实验数据将很好地了解激光爆发的相互作用和理论建模。
Here, to the best of our knowledge, for the first time we report the in-depth experimental study of high ultrafast laser ablation efficiency for processing of copper and steel with single-pulses, MHz-, GHz- and burst in the burst (biburst) regime. The comparison of burst, biburst, and single-pulse ablation efficiencies was performed for beam-size-optimised regimes, showing the real advantages and disadvantages of milling and drilling processing approaches. Highly-efficient ultrashort pulse laser processing was achieved for ~1 um optical wavelength: 8.8 um3/uJ for copper drilling, 5.6 um3/uJ for copper milling, and 6.9 um3/uJ for steel milling. We believe that the huge experimental data collected in this study will serve well for the better understanding of laser burst-matter interaction and theoretical modelling.
