飞秒强激光脉冲中氩团簇库仑爆炸特性研究  

Characteristics of Coulomb Explosion of Argon Clusters in Intense Femtosecond Laser Pulses

作　　者：蔡旭红[1] 李邵辉[1] 

机构地区：[1]汕头大学物理系,广东汕头515063

出　　处：《光子学报》2006年第6期811-814,共4页Acta Photonica Sinica

基　　金：国家自然科学基金(No.60408008)资助项目

摘　　要：利用Bathe模型,理论模拟了氩团簇在飞秒强激光中(100fs,1016W/cm2)的电离和爆炸过程·研究结果显示,在团簇尺寸较小时,离子平均能量与团簇初始半径平方成正比,爆炸机制为典型的库仑爆炸·随着团簇尺寸的增加,能量增加的速度趋缓并在一定团簇尺寸后趋于饱和·模拟结果与实验数据有较好的吻合·Using Bathe model, the ionization and explosion process of argon clusters in intense femtosecond laser pulses （100 fs, 10^16 W/cm2） has been studied. The results show that the average energy of argon ions is proportional to the square of initial radius of the cluster for small clusters, and the explosion mechanism is typical Coulomb explosion. With increasing cluster size, the average energy of argon ions increases slowly and gets saturated gradually beyond a critical cluster size. The simulation results are in good agreement with experimental results.

关 键 词：飞秒激光 氩团簇 库仑爆炸 

分 类 号：O437[机械工程—光学工程]