| 飞秒强激光作用下Ar原子团簇库仑爆产生的离子能谱 |
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| 引用本文： | 吴同成,邱锡钧. 飞秒强激光作用下Ar原子团簇库仑爆产生的离子能谱[J]. 上海大学学报(自然科学版), 2005, 11(2): 174-177 |
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| 作者姓名： | 吴同成 邱锡钧 |
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| 作者单位： | 上海大学,理学院,上海,200444;上海大学,理学院,上海,200444 |
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| 摘 要： | 研究了Ar原子团簇在飞秒强激光作用下的电离机制,考虑了团簇经过库仑爆炸过程和流体力学膨胀过程两种膨胀机制情况下,对离子能谱进行了计算.计算结果与实验结果基本符合,能够很好地解释离子高能端特征,对低能端的能谱也进行了分析.
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| 关 键 词： | 飞秒激光 团簇 隧道电离 有质动力势 流体动力学模型 库仑爆炸 |
| 文章编号： | 1007-2861(2005)02-0174-04 |
| 修稿时间： | 2004-02-07 |
Ion Energy Spectrum Due to Ar Atomic-Clusters Coulomb Explosions Induced by Intense Femtosecond Laser Pulse |
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| WU Tong-cheng,QIU Xi-jun. Ion Energy Spectrum Due to Ar Atomic-Clusters Coulomb Explosions Induced by Intense Femtosecond Laser Pulse[J]. Journal of Shanghai University(Natural Science), 2005, 11(2): 174-177 |
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| Authors: | WU Tong-cheng QIU Xi-jun |
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| Abstract: | The ionization mechanism of the Ar atomic-clusters irradiated by a femtosecond laser pulse is studied. Ionic energy spectrum is calculated by taking into account the atomic-cluster Coulomb explosion and hydrodynamic expansion. The calculation results agree with experimental data, and can (explain) ionic characteristics in the high-energy region. Energy spectrum in the low-energy region is also analyzed. |
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| Keywords: | femtosecond laser pulse cluster tunneling ionization ponderomotive potential hydrodynamic model Coulomb explosion |
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