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首页> 外文期刊>Journal of Heat Transfer >Energy Transport and Nanostructuring of Dielectrics by Femtosecond Laser Pulse Trains
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Energy Transport and Nanostructuring of Dielectrics by Femtosecond Laser Pulse Trains

机译:飞秒激光脉冲序列的介电能量传输和纳米结构

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摘要

This study analyzes single burst ablation of dielectrics by a femtosecond pulse train that consists of one or multiple pulses. It is found that (1) there exist constant-ablation-depth zones with respect to fluence for one or multiple pulses per train and (2) for the same total fluence per train, although the ablation depth decreases in multiple pulses as compared to that of a single pulse, the depth of the constant-ablation-depth zone decreases. In other words, repeatable structures at the desired smaller nanoscales can be achieved in dielectrics by using the femtosecond pulse train technology, even when the laser fluence is subject to fluctuations. The predicted trends are in agreement with published experimental data.
机译:这项研究分析了由一个或多个脉冲组成的飞秒脉冲序列对电介质的单脉冲烧蚀。发现(1)在每列一个或多个脉冲的通量方面存在恒定的烧蚀深度区域,(2)在每列相同的总通量下存在通量深度,尽管与之相比,在多个脉冲中消融深度减小了。在单个脉冲的脉冲间隔中,恒定消融深度区域的深度减小。换句话说,通过使用飞秒脉冲序列技术,即使在激光能量密度易受波动的情况下,也可以在电介质中以所需的较小纳米级实现可重复的结构。预测趋势与已发布的实验数据一致。

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