形变靶中的集体吸收动力学及其增强
Collective Absorption Dynamics and Enhancement in Deformed Targets
摘要：
强烈的飞秒激光脉冲与薄箔，有一个强加的变形的相互作用进行了比较厚的目标，开发弓冲击。两种靶类型均产生良好的吸收。在$4 \cdot 10^{18} W/cm^2$下，$0.2μm$厚、15倍过密箔的吸收率高达80%。在$10^{18} W/cm^2$下，对于$4 μm$厚、2倍过密厚的靶获得50%的值。对于激光等离子体界面的可比较的延伸和曲率，两个目标中的吸收水平变得相似。在这两个吸收尺度弱强度和密度。然而，薄箔和厚靶中的能量传输是不同的。
英文摘要：
The interaction of intense fs laser pulses with thin foils that have an imposed deformation is compared with thick targets that develop bow shocks. Both target types yield good absorption. Up to 80% absorption is obtained for a $0.2μm$ thick, 15 times over-dense foil at $4 \cdot 10^{18} W/cm^2$. A value of 50% is obtained for a $4 μm$ thick, 2 times over-dense thick target at $10^{18} W/cm^2$. For comparable extension and curvature of the laser-plasma interfaces absorption levels in both targets become similar. In both absorption scales weakly with intensity and density. Energy transport in thin foils and thick targets, however, is different.
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