Journal
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY
Volume 25, Issue 7, Pages 1811-1816Publisher
KOREAN SOC MECHANICAL ENGINEERS
DOI: 10.1007/s12206-011-0511-z
Keywords
Pulsed laser ablation; Finite element method; Evaporation; Nanosecond field
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Funding
- Korea government (MEST) [2011-0000117]
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For the pulsed laser ablation in nanosecond fields, the key physical phenomenon of the removing process is thermal evaporation. For the process optimization of the nano-second laser ablation, it is essential to set up effective simulation that can reflect material absorption coefficient, energy intensity of laser, laser pulse shape, and so forth. In this research, material ablation in nano-second region is simulated by using a finite element method (FEM) commercial package and its result has been compared with experiment results focused on the difference in the ablation depth and its shape occurred after each laser pulse hitting. Finally, the effect of the parameter variation on the ablation process has been verified.
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