Ablation and transmission of thin solid targets irradiated by intense extreme ultraviolet laser radiation
Ablation and transmission of thin solid targets irradiated by intense extreme ultraviolet laser radiation
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DOI：
10.1063/1.4953669
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发表时间：
2016-07
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用实验和模拟相结合的方法研究了极紫外光(EUV)激光与聚对苯乙烯箔的相互作用。单个纳秒级极紫外光脉冲聚焦到3×1010W cm−2穿孔微米厚靶材。同时使用相同的激光脉冲通过传输测量来诊断相互作用。采用二维辐射流体力学和绕射计算相结合的方法对烧蚀过程进行了模拟，与实验结果吻合较好。这一理论方法允许在广泛的参数范围内预测与强流极紫外光相互作用的模型。
The interaction of an extreme ultraviolet (EUV) laser beam with a parylene foil was studied by experiments and simulation. A single EUV laser pulse of nanosecond duration focused to an intensity of 3 × 1010 W cm−2 perforated micrometer thick targets. The same laser pulse was simultaneously used to diagnose the interaction by a transmission measurement. A combination of 2-dimensional radiation-hydrodynamic and diffraction calculations was used to model the ablation, leading to good agreement with experiment. This theoretical approach allows predictive modelling of the interaction with matter of intense EUV beams over a broad range of parameters.