Impact of liquid environment on femtosecond laser ablation
Impact of liquid environment on femtosecond laser ablation
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DOI：
10.1007/s00339-017-1280-z
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发表时间：
2017-11-01
影响因子：
2.7
通讯作者：
Gurevich, E. L.
中科院分区：
文献类型：
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作者：
Kanitz, A.;Hoppius, J. S.;Gurevich, E. L.
研究了飞秒激光加工铁在不同液体中的烧蚀速率，其影响可达5 J/cm(2)。由此产生的通量依赖关系是通过从双温度模型导出的方法来模拟的。在我们的实验中，液体环境强烈影响有效穿透深度，例如，在水中的烧蚀速率几乎是在甲苯中的十倍。对这种效应进行了讨论，并从现象学的角度将其引入模型。额外的反射率测量和等离子成像可以更好地了解消融过程。
The ablation rate by femtosecond laser processing of iron in different liquids is investigated for fluences up to 5 J/cm(2). The resulting fluence dependency is modeled by an approach derived from the two-temperature model. In our experiments, the liquid environment strongly affects the effective penetration depth, e.g, the ablation rate in water is almost ten times higher than in toluene. This effect is discussed and introduced phenomenologically into the model. Additional reflectivity measurements and plasma imaging provide improved insight into the ablation process.