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Damage morphology and mechanism in ablation cutting of thin glass sheets with picosecond pulsed lasers
Sun, Mingying; Eppelt, Urs; Hartmann, Claudia; Schulz, Wolfgang; Zhu, Jianqiang; Lin, Zunqi; sunmy@siom.ac.cn
2016
Source PublicationOpt. Laser Technol.
Volume80Pages:227
AbstractWe experimentally investigated the morphology and mechanism of laser-induced damage in the ablation cutting of thin glass sheets with picosecond pulsed lasers and we compared the experimental results to our models. After several passes of laser ablation, we observed two different kinds of damage morphologies on the cross-section of the cut channel. They are distinguished to be the damage region caused by high-density free-electrons and the heat-affected zone due to the heat accumulation, respectively. Furthermore, micro-cracks can be observed on the top surface of the workpiece near the cut edge. The nano-cracks could be generated by high energy free-electrons but opened and developed to be visible micro-cracks by thermal stress generated in the heat-affected zone. The crack length was proportional to the volume of heat-affected zone. Heat-affected-zone and visible-cracks free conditions of glass cutting were achieved by controlling the repetition rate and spatial overlap of laser pulses. (C) 2016 Elsevier Ltd. All rights reserved.
SubtypeArticle
Department联合
DOI10.1016/j.optlastec.2016.01.023
Indexed BySCI
WOS IDWOS:000371102200031
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.siom.ac.cn/handle/181231/27856
Collection高功率激光物理国家实验室
Corresponding Authorsunmy@siom.ac.cn
Affiliation中国科学院上海光学精密机械研究所
Recommended Citation
GB/T 7714
Sun, Mingying,Eppelt, Urs,Hartmann, Claudia,et al. Damage morphology and mechanism in ablation cutting of thin glass sheets with picosecond pulsed lasers[J]. Opt. Laser Technol.,2016,80:227.
APA Sun, Mingying.,Eppelt, Urs.,Hartmann, Claudia.,Schulz, Wolfgang.,Zhu, Jianqiang.,...&sunmy@siom.ac.cn.(2016).Damage morphology and mechanism in ablation cutting of thin glass sheets with picosecond pulsed lasers.Opt. Laser Technol.,80,227.
MLA Sun, Mingying,et al."Damage morphology and mechanism in ablation cutting of thin glass sheets with picosecond pulsed lasers".Opt. Laser Technol. 80(2016):227.
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