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Unveiling of incubation and absorption-enhanced effects occurring during multi-shot femtosecond laser ablation of aluminum and steel surfaces

文献类型：期刊论文

作者Wang, Pengjie4,5; Peng, Qing1,2,3
刊名NANOTECHNOLOGY
出版日期2024
卷号35期号:1页码:11
ISSN号0957-4484
关键词threshold fluence femtosecond-laser surface modification incubation effect hydrodynamic simulation
DOI10.1088/1361-6528/acfe82
通讯作者Wang, Pengjie(pjwang@ncepu.edu.cn)
英文摘要Interactions between ultrafast lasers and metal targets are crucial in various laser micro/nano-machinings. However, the underlying incubation and absorption-enhancement mechanisms remain elusive, which hinders the quality control of laser processing. Herein, we studied the incubation effect and absorption enhancement during multi-shot femtosecond-laser ablations via combining experiments and hydrodynamic simulations, taking aluminum alloy and stainless steels as paradigm materials. Accumulation effects of heat and damage-induced deformation were revealed by the evolutions of microstructures induced by low-energy femtosecond lasers. The calculated ablation thresholds were reduced with shot number, demonstrating the incubation effect. Calculation of threshold fluence via crater diameter is better than ablation depth, because that the latter is determined by different parameters at low- and high-energy conditions. Experimental observations and hydrodynamic simulations indicated that the enhanced absorption could be attributed to several factors, including laser-induced surface micro/sub-micro structures, photoionization, and plasma evolutions.
WOS关键词PULSES ; METALS ; ACCUMULATION ; THRESHOLDS ; MORPHOLOGY ; RIPPLES ; DAMAGE
资助项目P. W. would like to acknowledge the financial support provided by the Fundamental Research Funds for the Central Universities (Grant No. 2023MS133). Q. P. would like to acknowledge the support provided by National Natural Science Foundation of China (Grant[2023MS133] ; Fundamental Research Funds for the Central Universities[12272378] ; National Natural Science Foundation of China[2020B0909010003] ; High-level Innovation Research Institute Program of Guangdong Province[E1Z1011001] ; Chinese Academy of Sciences
WOS研究方向Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
WOS记录号WOS:001084055100001
资助机构P. W. would like to acknowledge the financial support provided by the Fundamental Research Funds for the Central Universities (Grant No. 2023MS133). Q. P. would like to acknowledge the support provided by National Natural Science Foundation of China (Grant ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; High-level Innovation Research Institute Program of Guangdong Province ; Chinese Academy of Sciences
源URL[http://dspace.imech.ac.cn/handle/311007/93156]  
专题力学研究所_非线性力学国家重点实验室
通讯作者Wang, Pengjie
作者单位1.Guangdong Aerosp Res Acad, Guangzhou 511458, Peoples R China
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
4.North China Elect Power Univ, Hebei Engn Res Ctr Adv Mfg & Intelligent Operat &, Baoding 071003, Peoples R China
5.North China Elect Power Univ, Dept Mech Engn, Baoding 071000, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Pengjie,Peng, Qing. Unveiling of incubation and absorption-enhanced effects occurring during multi-shot femtosecond laser ablation of aluminum and steel surfaces[J]. NANOTECHNOLOGY,2024,35(1):11.
APA Wang, Pengjie,&Peng, Qing.(2024).Unveiling of incubation and absorption-enhanced effects occurring during multi-shot femtosecond laser ablation of aluminum and steel surfaces.NANOTECHNOLOGY,35(1),11.
MLA Wang, Pengjie,et al."Unveiling of incubation and absorption-enhanced effects occurring during multi-shot femtosecond laser ablation of aluminum and steel surfaces".NANOTECHNOLOGY 35.1(2024):11.

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来源：力学研究所

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