Study of nanosecond laser ablation on aluminum and stainless steel targets

被引：0

作者：

Han F. ^{[1
,2
]}

Xu S. ^{[1
]}

Song W. ^{[1
,2
]}

Xiang X. ^{[1
]}

Liu C. ^{[1
]}

Miao X. ^{[2
]}

Yuan X. ^{[2
]}

机构：

[1] Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, Sichuan

[2] School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan

来源：

Zhongguo Jiguang/Chinese Journal of Lasers | 2016年 / 43卷 / 02期

关键词：

Ablation depth; Ablation rate; Aluminum alloy; Laser ablation; Laser technique; Stainless steel;

D O I：

10.3788/CJL201643.0203005

中图分类号：

学科分类号：

摘要：

Nanosecond laser damage of several aluminum and stainless steel are investigated, which materials are commonly used in the target chamber of laser drive inertial confinement fusion (LICF) device. The experimental data on mass removal and ablation depth during 1064 nm, 8 ns fundamental frequency laser ablation are measured. The results show that the aluminum is ablated obviously when the laser fluence is greater than 1.0 J/cm2. The ablation rate of aluminum increased slowly, which has an average value of 2.31±0.89 μg/cm2/shot under laser fluence of 1.2~5.2 J/cm2. Furthermore, the ablation depth of aluminum increases with the increase of laser fluence, while that of stainless steel increases at first and then decreases. Aluminum alloy's ablation depth is significantly higher than that of stainless steel. The ablation mechanism is discussed. The 1064 nm laser absorption of stainless steel is much higher than that of aluminum, which effects the laser energy deposition processes. This study is very helpful to LICF target chamber materials' selection and laser drilling or cutting of the metals. © 2016, Chinese Laser Press. All right reserved.

引用

页数：7

共 21 条

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