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首页> 外文会议>Conference on Ultrafast Phenomena in Semiconductors and Nanostructure Materials >Thermal effects in femtosecond laser ablation of metals
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Thermal effects in femtosecond laser ablation of metals

机译：MEFTOSECOND激光消融金属的热效应

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摘要

With recent advances in ultrafast laser technology, ablation using femtosecond laser pulses has found a wide range of applications. It is widely believed that ablation using femtosecond lasers has many unique advantages compared to longer-pulse ablation. One of the most significant features is believed to be that a negligible amount of energy should remain in the sample following ablation because the deposited heat does not have enough time to travel into the bulk sample during the femtosecond laser pulse. In this paper, we discuss our new findings on thermal effects in femtosecond laser ablation of metals. In contrast to the previous common belief, we find that a significant amount of residual thermal energy is deposited in metal samples following multi-shot femtosecond laser ablation. We further discuss how the absorptance of metals depends on the structural modifications. Lastly, we discuss the formation of periodic surface structures on metals induced by femtosecond laser pulses.
机译：随着超快激光技术的最近进步，使用飞秒激光脉冲的消融已经发现了广泛的应用。与较长脉冲消融相比，使用飞秒激光器的消融具有许多独特的优点。最重要的特征之一被认为是消融后消融后的样品中可以忽略不计的能量，因为沉积的热量在飞秒激光脉冲期间没有足够的时间进入散装样品。在本文中，我们讨论了对金属飞秒激光消融的热效应的新发现。与以前的常见信念相比，我们发现在多射下飞秒激光烧蚀后，在金属样品中沉积大量的残留热能。我们进一步讨论了金属的吸收度如何取决于结构修改。最后，我们讨论了由飞秒激光脉冲引起的金属的周期性表面结构的形成。

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