Theory analysis and experiment verification on picosecond laser ablation of Al film

	Theory analysis and experiment verification on picosecond laser ablation of Al film
	Jin F.-Y.; Chen B.; E S.-L.; Wang H.-F.; Li Y.-P.; Xing Y.
	2014
发表期刊	Faguang Xuebao/中文 Journal of Luminescence
ISSN	ISBN/10007032
卷号	35 期号:6 页码:754-760
摘要	In order to investigate the energy transport process in Al film irradiated by 10 ps lasers, a semi-classical two temperature model (TTM) was applied, and a 1D finite element calculation model was constructed with finite element software. Considering phase change region of material during laser ablation, reasonable expression was added to the TTM. According to the calculation, the surface lattice temperature evolutions along with time for single pulse lasers with different powers were presented. In order to investigate the surface plasma reflectivity and the heat absorption coefficient changing with lattice temperature during laser irradiation, the free-electron gas theory was applied. Moreover, the laser generated thermoelectric field and the electron drift velocity distribution map were depicted. The results verify that the thermoelectric field is the major reason for the electron drift movement, and the location of maximum velocity is changed with time. The spatial and temporal lattice temperature distribution map of Al film irradiated by 0.12 W picosecond laser was depicted. According to the calculation, the phase explosion is the reason for ablation, and it occurs during the process of laser energy deposition. The over-heated zone (OHZ) was defined, and the relationship between ablated depths and time was found. The calculated ablation depths of single pulses coincide with the experiment for 10 ps laser.
收录类别	EI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/44461
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Jin F.-Y.,Chen B.,E S.-L.,et al. Theory analysis and experiment verification on picosecond laser ablation of Al film[J]. Faguang Xuebao/中文 Journal of Luminescence,2014,35(6):754-760.
APA	Jin F.-Y.,Chen B.,E S.-L.,Wang H.-F.,Li Y.-P.,&Xing Y..(2014).Theory analysis and experiment verification on picosecond laser ablation of Al film.Faguang Xuebao/中文 Journal of Luminescence,35(6),754-760.
MLA	Jin F.-Y.,et al."Theory analysis and experiment verification on picosecond laser ablation of Al film".Faguang Xuebao/中文 Journal of Luminescence 35.6(2014):754-760.