| 强激光等离子体耦合效应的数值模拟 |
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| 引用本文： | 屠琴芬 俞汉清. 强激光等离子体耦合效应的数值模拟[J]. 强激光与粒子束, 1997, 9(3): 391-395 |
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| 作者姓名： | 屠琴芬 俞汉清 |
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| 作者单位： | 西北核技术研究所,西安69信箱15分箱,710024 |
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| 基金项目： | 国家863惯性约束聚变领域资助 |
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| 摘 要： | 研究了高强度（1012(1014W/cm2）,纳秒脉冲(高斯型)激光与AI、 CH等离子体的耦合效应。采用一维双温、单流体力学方程组,数值模拟研究激光强度和波长对靶表面能量沉积和对等离子体特征参数的影响。激光等离子体耦合的主要机制有:轫致辐射、逆轫致辐射吸收、热扩散和电子、离子之间碰撞能量交换。给出了电子最高温度与光强的近似定量关系。
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| 关 键 词： | 强激光 等离子体 耦合效应 数值模拟 |
| 收稿时间： | 1900-01-01; |
A numerical Simulation for Coupling Effect of High Intensity Laser and Plasma |
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| Tu Qinfen et al.. A numerical Simulation for Coupling Effect of High Intensity Laser and Plasma[J]. High Power Laser and Particle Beams, 1997, 9(3): 391-395 |
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| Authors: | Tu Qinfen et al. |
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| Affiliation: | Tu Qinfen et al. |
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| Abstract: | The coupling effect of high intensity nanosecond laser pulse with Al or CH plasmas are studied using the hydrodynamical equations which are one dimesional,double temperature,single fluid.The effects of laser intensity and wavelength on energy deposition in the target surface and plasma parametes are numerically investigated.The main mechanism of laser plasma coupling includes the free free bremsstrahlung emission,inverse bremsstroblung absorption,the heat diffussion and energy exchange between electrons and ions.The aproximate scales of maximum electron temperature give out with respect to the laser intensity. |
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| Keywords: | high intensity laser plasma coupling effect numerical simulation |
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