Optical observation of shock waves and cavitation bubbles in high intensity laser-induced shock processes

被引：35
|
作者：
Marti-Lopez, L. [1 ]
Ocana, R. [1 ]
Porro, J. A. [2 ]
Morales, M. [2 ]
Ocana, J. L. [2 ]
机构：
[1] Asociac Ind Opt Color & Imagen, Dept Laser, Valencia 46980, Spain
[2] Ctr Laser UPM, Madrid 28031, Spain
来源：
APPLIED OPTICS | 2009年 / 48卷 / 19期
关键词：
RESIDUAL-STRESSES; INDUCED BREAKDOWN; IRRADIATION PARAMETERS; GENERATED CAVITATION; SURFACE DEFORMATION; REFRACTIVE-INDEX; DYNAMICS; PHOTOGRAPHY; SCHLIEREN; COLLAPSE;
D O I：
10.1364/AO.48.003671
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report an experimental study of the temporal and spatial dynamics of shock waves, cavitation bubbles, and sound waves generated in water during laser shock processing by single Nd:YAG laser pulses of nanosecond duration. A fast ICCD camera (2 ns gate time) was employed to record false schlieren photographs, schlieren photographs, and Mach-Zehnder interferograms of the zone surrounding the laser spot site on the target, an aluminum alloy sample. We recorded hemispherical shock fronts, cylindrical shock fronts, plane shock fronts, cavitation bubbles, and phase disturbance tracks. (C) 2009 Optical Society of America
引用
收藏
页码：3671 / 3680
页数：10
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