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首页> 外文期刊>Applied optics >Single-pulse laser ablation threshold of borosilicate, fused silica, sapphire, and soda-lime glass for pulse widths of 500 fs, 10 ps, 20 ns
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Single-pulse laser ablation threshold of borosilicate, fused silica, sapphire, and soda-lime glass for pulse widths of 500 fs, 10 ps, 20 ns

机译：硼硅酸盐，熔融石英，蓝宝石和钠钙玻璃的单脉冲激光烧蚀阈值，脉冲宽度为500 fs，10 ps，20 ns

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摘要

In this work, we report a comparative study of the laser ablation threshold of borosilicate, fused silica, sapphire, and soda-lime glass as a function of the pulse width and for IR laser wavelengths. We determine the ablation threshold for three different pulse durations: tau = 500 fs, 10 ps, and 20 ns. Experiments have been performed using a single laser pulse per shot in an ambient (air) environment. The results show a significant difference, of two orders of magnitude, between the group of ablation thresholds obtained for femtosecond, picosecond, and nanosecond pulses. This difference is reduced to 1 order of magnitude in the soda-lime substrate with tin impurities, pointing out the importance of the incubation effect. The morphology of the marks generated over the different glass materials by one single pulse of different pulse durations has been analyzed using a scanning electron microscope (FESEM ULTRA Plus). Our results are important for practical purposes, providing the ablation threshold data of four commonly used substrates at three different pulse durations in the infrared regime (1030-1064 nm) and complete data for increasing the understanding of the differences in the mechanism's leading ablation in the nanosecond, picosecond, and femtosecond regimes. (c) 2015 Optical Society of America
机译：在这项工作中，我们报告了对硼硅酸盐，熔融石英，蓝宝石和钠钙玻璃的激光烧蚀阈值的比较研究，该阈值是脉冲宽度和IR激光波长的函数。我们确定三种不同脉冲持续时间的消融阈值：tau = 500 fs，10 ps和20 ns。在环境（空气）环境中，每次发射使用单个激光脉冲进行了实验。结果显示，飞秒，皮秒和纳秒脉冲获得的消融阈值组之间存在两个数量级的显着差异。在具有锡杂质的钠钙基质中，该差异减小到1个数量级，从而指出了保温作用的重要性。已使用扫描电子显微镜（FESEM ULTRA Plus）分析了由不同脉冲持续时间的单个脉冲在不同玻璃材料上产生的标记的形态。我们的结果对于实际目的很重要，它提供了四种常用衬底在红外范围（1030-1064 nm）中三个不同脉冲持续时间下的烧蚀阈值数据，并提供了完整的数据以增进对该机理中主要烧蚀方法的理解。纳秒，皮秒和飞秒范围。 （c）2015年美国眼镜学会

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