通量
飞秒
应力波
材料科学
烧蚀
激光器
热弹性阻尼
压力(语言学)
石英玻璃
光学
辐照
复合材料
物理
核物理学
航空航天工程
气象学
哲学
工程类
热的
语言学
作者
Haofeng Hu,Xiaolei Wang,Hongchen Zhai,Nan Zhang,Pan Wang
摘要
Shadowgraphs of dynamic processes outside and inside transparent target during the intense femtosecond laser ablation of silica glass are recorded. Two material ejections outside the target and two corresponding stress waves inside the target are observed at different energy fluences. In particular, a third stress wave can be observed at energy fluence as high as 40 J/cm2. The first wave is a thermoelastic wave, while the second and the third may be generated subsequently by the mechanical expansions. In addition, the magnitudes of the three stress waves decrease sequentially based on our analysis.
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