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Proceedings Paper

Characteristics of shock wave from nanosecond laser-produced aluminum plasma in air
Author(s): Tianhang Liu; Xun Gao; Zehao Liu; Changkai Sun; Zuoqiang Hao; Guangyong Jin; Jingquan Lin
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Paper Abstract

Characteristics of shock wave as well as its evolution of aluminum plasma produced by nanosecond YAG laser is investigated by time-resolved optical shadowgraph images. Experimental results show that shock wave is strongly influenced by the laser parameters and target arrangement. Shock waves from aluminum plasma and air plasma are observed simultaneously by shadowgraphs when the distance from lens to target surface (DLTS) is longer than the lens focal length, and a narrow bright “line” is observed in the region where shock waves from Al plasma and air plasma meet. The longitudinal expansion velocity of shock wave from Al plasma is largely influenced by DLTS and laser intensity as well, and it increases with laser intensity at the early stage of plasma expansion and reach to a maximum of 8.1×104 m/s.

Paper Details

Date Published: 16 May 2013
PDF: 6 pages
Proc. SPIE 8796, 2nd International Symposium on Laser Interaction with Matter (LIMIS 2012), 879611 (16 May 2013); doi: 10.1117/12.2010620
Show Author Affiliations
Tianhang Liu, Changchun Univ. of Science and Technology (China)
Xun Gao, Changchun Univ. of Science and Technology (China)
Zehao Liu, Changchun Univ. of Science and Technology (China)
Changkai Sun, Changchun Univ. of Science and Technology (China)
Zuoqiang Hao, Changchun Univ. of Science and Technology (China)
Guangyong Jin, Changchun Univ. of Science and Technology (China)
Jingquan Lin, Changchun Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 8796:
2nd International Symposium on Laser Interaction with Matter (LIMIS 2012)
Stefan Kaierle; Jingru Liu; Jianlin Cao, Editor(s)

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