| Critical pulse in multi-shot femtosecond laser ablation on metallic surfaces | |
| Wang, Pengjie1,2; Kong, Xiangguang1,2; Qi, Fugong1,2; Zhou, Jiyu1,2; Ding, Haimin1,2; Peng Q(彭庆)3,4,5 | |
| Corresponding Author | Wang, Pengjie([email protected]) |
| Source Publication | NANOTECHNOLOGY
 |
| 2024-05-20 | |
| Volume | 35Issue:21Pages:10 |
| ISSN | 0957-4484 |
| Abstract | Thermal effect remains a thorny issue for femtosecond-laser surface engineering and nanostructuring on metallic targets with high pulse energies or high repetition rates, which needs to be paid adequate attentions. Herein, we have experimentally investigated the heat diffusion and accumulations during single-shot and multi-shot femtosecond laser ablation on metallic surfaces. We have for the first time observed a novel phenomenon that the thermal effect was intensified abruptly when the laser-pulse number goes over a threshold (approximately between 10 and 20 for aluminum alloy with laser fluence of 6 J cm-2), accompanied with a dramatic reduction of ablated depth and complicated plasma dynamics. Based on both optical and thermodynamic analysis, we introduced a defocusing-dominated plasma-assistant model for this abnormal thermal effect. This work explored the critical experimental parameters for femtosecond-laser surface modification and processing in micro-scale engineering applications. |
| Keyword | heat-intensified effect recast accumulation laser ablation mechanisms femtosecond laser surface modification |
| DOI | 10.1088/1361-6528/ad2bcf |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001180421800001 |
| WOS Keyword | HEAT ACCUMULATION ; VACUUM |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied |
| Funding Project | National Natural Science Foundation of China https://doi.org/10.13039/501100001809[2023MS133] ; Fundamental Research Funds for the Central Universities[12272378] ; National Natural Science Foundation of China[2232065] ; Natural Science Foundation of Beijing[E2022502011] ; Natural Science Foundation of Beijing[E2022502004] ; Natural Science Foundation of Hebei Province[2020B0909010003] ; High-level Innovation Research Institute Program of Guangdong Province[E1Z1011001] ; Chinese Academy of Sciences |
| Funding Organization | National Natural Science Foundation of China https://doi.org/10.13039/501100001809 ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; Natural Science Foundation of Beijing ; Natural Science Foundation of Hebei Province ; High-level Innovation Research Institute Program of Guangdong Province ; Chinese Academy of Sciences |
| Classification | 二类 |
| Ranking | 3+ |
| Contributor | Wang, Pengjie |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/94760 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.North China Elect Power Univ, Baoding 071000, Peoples R China; 2.North China Elect Power Univ, Hebei Engn Res Ctr Adv Mfg & Intelligent Operat &, Baoding 071003, Peoples R China; 3.Inst Mech, Chinese Acad Sci, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 4.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China; 5.Guangdong Aerosp Res Acad, Guangzhou, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Pengjie,Kong, Xiangguang,Qi, Fugong,et al. Critical pulse in multi-shot femtosecond laser ablation on metallic surfaces[J]. NANOTECHNOLOGY,2024,35,21,:10.Rp_Au:Wang, Pengjie |
| APA | Wang, Pengjie,Kong, Xiangguang,Qi, Fugong,Zhou, Jiyu,Ding, Haimin,&彭庆.(2024).Critical pulse in multi-shot femtosecond laser ablation on metallic surfaces.NANOTECHNOLOGY,35(21),10. |
| MLA | Wang, Pengjie,et al."Critical pulse in multi-shot femtosecond laser ablation on metallic surfaces".NANOTECHNOLOGY 35.21(2024):10. |
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