利用原子力显微镜和扫描电镜观察了材料的烧蚀形貌，测量了破坏阈值与脉冲宽度、烧蚀深度与脉冲能量的依赖关系。
The damage morphology, and threshold fluence as a function of pulse duration and the dependence of ablation depths on the pulse fluences are measured.
实验发现，在脉冲激光作用下，水中靶材依次受到激光烧蚀压力和射流冲击力作用，且射流冲击力是造成靶材破坏的主要原因。
Furthermore, the experimental results show that underwater targets are impacted in turn by laser-generated ablation force and high-speed liquid-jet impulse induced by bubble collapse.
分析认为：实验中引起探测器系统破坏的主要原因是温度升高引起的烧蚀热。
Analyses show ablation heat is the most important reason of detector system damage in this experiment.
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