Ultrafast microscopy in resolving femtosecond laser-induced surface structuring

doi:10.7567/jjap.57.08pf04

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	Ultrafast microscopy in resolving femtosecond laser-induced surface structuring
	Fang, R. R.; Vorobyev, A. Y.; Singh, S. C.; Guo, C. L.
	2018
发表期刊	Japanese Journal of Applied Physics
ISSN	0021-4922
卷号	57 期号:8 页码:5
摘要	In this work, using a high-contrast scattered-light-based optical imaging technique, we capture the complete evolution of the femtosecond laser-induced surface structures of metals from the initial transient morphological fluctuation to the end of resolidification. We find that the initial transient surface structures appear at a delay time on the order of 100 ps following laser irradiation. Both temporal and spatial evolution of the transient surface structures depend on laser fluence. The major mechanism of the transient surface structures is ablation driven by pressure relaxation in the surface layer. The ablation mechanism is identified as phase explosion by estimating the surface temperatures at the studied fluence. The temporal evolution of the solidification process is found to be significantly slower than previously predicted by theoretical models. (C) 2018 The Japan Society of Applied Physics
关键词	ablation metals pulse transformations semiconductors spectroscopy irradiation mechanisms dynamics matter Physics
DOI	10.7567/jjap.57.08pf04
收录类别	SCI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/60848
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Fang, R. R.,Vorobyev, A. Y.,Singh, S. C.,et al. Ultrafast microscopy in resolving femtosecond laser-induced surface structuring[J]. Japanese Journal of Applied Physics,2018,57(8):5.
APA	Fang, R. R.,Vorobyev, A. Y.,Singh, S. C.,&Guo, C. L..(2018).Ultrafast microscopy in resolving femtosecond laser-induced surface structuring.Japanese Journal of Applied Physics,57(8),5.
MLA	Fang, R. R.,et al."Ultrafast microscopy in resolving femtosecond laser-induced surface structuring".Japanese Journal of Applied Physics 57.8(2018):5.

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