Evolution of nanosecond laser-induced phase explosion based on a high-speed continuous imaging system

被引：13

作者：

Wang, Yaode ^{[1
]}

Shen, Huijuan ^{[1
]}

Liu, Chang ^{[1
]}

Hou, Xiaofei ^{[1
]}

Tan, Yong ^{[1
]}

Hao, Zuoqiang ^{[2
]}

Li, Changli ^{[1
]}

机构：

[1] Changchun Univ Sci & Technol, Sch Sci, Changchun 130022, Peoples R China

[2] Shandong Normal Univ, Sch Phys & Elect, Jinan 250358, Peoples R China

来源：

RESULTS IN PHYSICS | 2021年 / 29卷

关键词：

Phase explosion; Plasma explosion; High-speed continuous imaging system; ABLATION; ALUMINUM; TARGETS;

D O I：

10.1016/j.rinp.2021.104782

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A high-speed continuous imaging system is established based on the principle of multiwavelength shadow imaging with a 15-ns exposure time and 1-ns frame interval. Furthermore, the spatiotemporal evolution of phase explosion products induced by Nd: YAG nanosecond laser ablation of aluminum was observed. The results show that, at the laser flux of 1.34 J/cm(2), only shockwave is caused by strong evaporation; above the laser flux of 2.05 J/cm(2), the shadow image shows significant explosive particles jet. When the injected laser flux reaches 3.32 J/cm(2), the plasma explosion is accompanied by the phase explosion. Moreover, at a laser flux between 1.34 and 2.05 J/cm(2) the velocity of shockwave fronts surges owing to the phase explosion. At a laser flux of 2.86-3.32 J/cm(2), the wavefront velocity resurges under the effects of phase explosion and plasma explosion.

引用

页数：8

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