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arXiv 1502.07722physics.opticsphysics.plasm-ph
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基于基本原理的飞秒脉冲laser损伤弹坑形成模型

Modeling crater formation in femtosecond-pulse laser damage from basic principles

Robert A. Mitchell, Douglass W. Schumacher, Enam A. Chowdhury

摘要:

我们提出了第一个基本的模拟方法,用于确定由于飞秒脉冲激光损伤的弹坑形态。为此,我们已经适应了通常用于等离子体物理中的粒子在细胞(PIC)的方法用于激光损伤的研究,并开发了第一个实施的对潜在的PIC代码。我们发现,PIC方法是一种补充的方法来模拟激光损伤,弥合完全从头算分子动力学方法和经验模型之间的差距。我们演示了我们的方法,通过模拟飞秒脉冲激光入射到一个平坦的铜板,强度范围。

英文摘要:

We present the first fundamental simulation method for the determination of crater morphology due to femtosecond-pulse laser damage. To this end we have adapted the particle-in-cell (PIC) method commonly used in plasma physics for use in the study of laser damage, and developed the first implementation of a pair-potential for PIC codes. We find that the PIC method is a complementary approach to modeling laser damage, bridging the gap between fully ab-initio molecular dynamics approaches and empirical models. We demonstrate our method by modeling a femtosecond-pulse laser incident on a flat copper slab, for a range of intensities.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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