Demonstration of periodic nanostructure formation with less ablation by double-pulse laser irradiation on titanium
Demonstration of periodic nanostructure formation with less ablation by double-pulse laser irradiation on titanium
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DOI：
10.1063/1.4955035
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发表时间：
2016-06-27
影响因子：
4
通讯作者：
Sakabe, Shuji
中科院分区：
文献类型：
--
作者：
Furukawa, Yuki;Sakata, Ryoichi;Sakabe, Shuji
通过以适当的时间间隔配对飞秒激光脉冲（持续时间类似于40 fs，中心波长类似于810 nm），形成激光诱导周期性表面结构（LIPSS），其烧蚀比用单个脉冲形成的烧蚀少得多。在钛板上，一对能量密度为70和140 mJ/cm（2）的激光脉冲和一个相当大的时间间隔（>10 ps）产生了一个间隙为600 nm的LIPSS，与210 mJ/cm（2）的单脉冲形成的间隙相同，而双脉冲仅烧蚀4 nm，是单脉冲烧蚀深度的四分之一。出版社：AIP Publishing
By pairing femtosecond laser pulses (duration similar to 40 fs and central wavelength similar to 810 nm) at an appropriate time interval, a laser-induced periodic surface structure (LIPSS) is formed with much less ablation than one formed with a single pulse. On a titanium plate, a pair of laser pulses with fluences of 70 and 140 mJ/cm(2) and a rather large time interval (>10 ps) creates a LIPSS with an interspace of 600 nm, the same as that formed by a single pulse of 210 mJ/cm(2), while the double pulse ablates only 4 nm, a quarter of the ablation depth of a single pulse. Published by AIP Publishing.