飞秒
材料科学
光学
激光器
通量
激光扫描
时域有限差分法
辐照
光电子学
物理
核物理学
作者
Shaojun Wang,Lan Jiang,Weina Han,Wei Liu,Jie Hu,Suocheng Wang,Yongfeng Lu
出处
期刊:Optics Letters
[The Optical Society]
日期:2020-04-14
卷期号:45 (8): 2411-2411
被引量:11
摘要
We achieved the controllable formation of laser-induced periodic surface structures (LIPSSs) on ZnO films deposited on fused silica induced by modulated temporally shaped femtosecond (fs) laser pulses (800 nm, 50 fs, 1 kHz) through the laser scanning technique. Two-dimensional (2D) high spatial frequency LIPSSs (HSFLs) with a period from 100 to 200 nm could be flexibly modulated based on the preprocessed nanostructures with appropriate fs laser irradiation conditions (fluence, scanning speed, and pulse delay). The finite-difference time-domain (FDTD) method combined with the Drude model was employed to calculate the redistributions of electric fields, which suggested the origin of HSFL formation.
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