光学学报, 2008, 28 (s1): 127, 网络出版: 2008-08-16
一维氢原子团簇模型下的兆电子伏离子与库仑爆炸: 简化的数值模拟
MeV Cations and Coulomb Explosion Threshold of 1D Atomic Hydrogen Cluster: Simplified Numerical Simulation
摘要
本文使用一维双列氢原子团簇模型对强激光场中的团簇动力学过程进行了数值模拟。计算所得的质子最大动能和能谱均与他人的计算或实验结果符合较好,但计算大为简化。表明本文所述模型适用于氢原子团簇模拟。本文亦根据逸出质子数量随入射激光强度变化的规律总结出一个描述团簇库仑爆炸的光强阈值公式。
Abstract
A simplified version together with a double-array 1D atomic hydrogen cluster model is presented for simulating cluster dynamics when exposed to intense light. The computed maximum kinetic energy and cation number distributions were in fair agreement with numerical results and experimental observations. An expression for determining the abundance variation of ionized cations with exciting laser intensity was proposed from which the threshold laser intensity of cluster Coulomb explosion could be extracted.
张喆, 张贵忠, 向望华, W. T. Hill Ⅲ. 一维氢原子团簇模型下的兆电子伏离子与库仑爆炸: 简化的数值模拟[J]. 光学学报, 2008, 28(s1): 127. Zhang Zhe, Zhang Guizhong, Xiang Wanghua, W. T. Hill Ⅲ. MeV Cations and Coulomb Explosion Threshold of 1D Atomic Hydrogen Cluster: Simplified Numerical Simulation[J]. Acta Optica Sinica, 2008, 28(s1): 127.