Nanoscale ablation on patterned diamondlike carbon film with femtosecond laser pulses
Nanoscale ablation on patterned diamondlike carbon film with femtosecond laser pulses
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DOI：
10.1063/1.2784966
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发表时间：
2007-09-17
影响因子：
4
通讯作者：
Miyazaki, Kenzo
中科院分区：
文献类型：
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作者：
Miyaji, Godai;Miyazaki, Kenzo
作者研究了低通量飞秒激光烧蚀中类金刚石碳膜上纳米结构形成的起源。使用带有亚微米尺寸条纹图案的薄膜靶，他们观察到纳米结构开始沿着垂直于激光偏振的方向形成在条纹的顶部。实验结果表明，纳米结构的纳米级烧蚀将优先通过高曲率条带表面上局部电场的增强来引发。
The authors have studied the origin of nanostructure formation on diamondlike carbon film in femtosecond laser ablation at low fluence. Using the thin film target patterned with submicrometer-size stripes, they have observed that the nanostructure starts to be formed on the crest of stripes along the direction perpendicular to the laser polarization. The experimental results have shown that nanoscale ablation for the nanostructuring would preferentially be initiated by the enhancement of localized electric field on the stripe surface with high curvature.