| 线极化强激光与轻元素气体相互作用产生的电子剩余能 |
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| 引用本文： | 彭惠民,何斌,郑无敌,叶春福.线极化强激光与轻元素气体相互作用产生的电子剩余能[J].强激光与粒子束,2001,13(4):441-445. |
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| 作者姓名： | 彭惠民 何斌 郑无敌 叶春福 |
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| 作者单位： | 北京应用物理与计算数学研究所， 北京8009信箱， 北京 100088 |
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| 基金项目： | 中国工程物理研究院科研基金 ( 970 2 3 1) |
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| 摘 要： | 对线极化超短脉冲强场电离进行了回顾和分析。对不同参数的超短脉冲、线极化强激光与轻元素气体靶相互作用产生的等离子体中电子剩余能进行了解析和粒子模拟(CIC)数值计算。考虑到强场线极化光产生的等离子体的高电离度和低电子温度的特点，采用了有别于通常计算逆轫致吸收的方法，用零温度近似计算逆轫致效应。CIC模拟计算强场与物质相互作用物理过程中还考虑了纵向电场效应。给出了强场线极化光与氦和氖元素气态靶相互作用的理论计算结果和相应的结论。
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| 关 键 词： | 光场电离 线极化 阈上电离 逆轫致 CIC模拟 |
| 文章编号： | 1001-4322(2001)04-0441-05 |
| 收稿时间： | 1999/7/25 |
| 修稿时间： | 1999年7月25日 |
Residual electron energy in light element gases produced bylinear polarized high intense laser |
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| PENG Hui min,HE Bin,ZHENG Wu di,YE Chun fu.Residual electron energy in light element gases produced bylinear polarized high intense laser[J].High Power Laser and Particle Beams,2001,13(4):441-445. |
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| Authors: | PENG Hui min HE Bin ZHENG Wu di YE Chun fu |
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| Institution: | Institute of Applied physics and Computational Mathematiccs, Beijing 100088, China |
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| Abstract: | The electron residual energy in different plasmas of low Z gas target driven by ultra short linear polariz ed laser with different parameters, is analytically calculated and simulated by cloud in cell (CIC) me thod. Considering that plasma produced by linear polarized light in strong field has low temperature and high ionization degree, instead of normal equation of calculating inverse bremsstrahlung rate, zero temperature approximation is adopted. In CIC simulation, longitudinal electric field effect in interaction of strong field with gas target is also included. The results of theoretical calculation of the interaction between linear polarized laser and g as targets of He, Ne as well as the corresponding conclusions are presented. |
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| Keywords: | optical field ionization lin ear polarized light above threshold ionization inverse bremmsstrahlung |
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