Particle in cell analysis of a laser-cluster interaction including collision and ionization processes.
Particle in cell analysis of a laser-cluster interaction including collision and ionization processes.
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DOI：
10.1364/oe.18.002389
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发表时间：
2010-02
期刊：
影响因子：
3.8
通讯作者：
T. Taguchi;T. Antonsen;J. Palastro;H. Milchberg;K. Mima
中科院分区：
文献类型：
--
作者：
T. Taguchi;T. Antonsen;J. Palastro;H. Milchberg;K. Mima
发展了一个新的粒子模拟程序，该程序包括碰撞和电离过程，用于研究激光与等离子体相互作用。使用新的代码，团簇等离子体在强激光场中的动力学进行了分析和共振加热的阈值强度，这是以前预测的准确评估。还模拟了离子能谱的角度依赖性。结果发现，各向异性能谱强烈地依赖于碰撞过程的存在或不存在。
A new particle-in-cell (PIC) code which includes collisional and ionization processes has been developed to study laser-plasma interaction. Using the new code, the dynamics of a cluster plasma in a strong laser field has been analyzed and the threshold intensity of the resonant heating, which was previously predicted is accurately evaluated. The angular dependence of ion energy spectrum has also been simulated. As a result, it is found that the anisotropic energy spectrum depends strongly on the presence or absence of collisional processes.