| 超短超强激光与稀薄等离子体相互作用的数值研究 |
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| 引用本文： | 陆全明 王水. 超短超强激光与稀薄等离子体相互作用的数值研究[J]. 光学学报, 1998, 18(5): 37-540 |
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| 作者姓名： | 陆全明 王水 |
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| 作者单位： | 中国科学院上海光学精密机械研究所激光等离子体研究室，中国科学技术大学地球和空间科学系 |
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| 基金项目： | 国家自然科学基金,国家科委863高科技项目 |
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| 摘 要： | 用一维粒子模拟方法（Ｐａｒｔｉｃｌｅ－ｉｎ－Ｃｅｌｌ）数值研究了超短超强激光（Ｉλ＾２〉１０＾１８Ｗ．μｍ＾２／ｃｍ＾２）与稀薄等离子体的相互作用过程，结果表明，超短超强激光与稀薄等相互作用后，在等离子体中激发起尾波和拉曼（Ｒａｍａｎ）波，它们的波长和频率的值与解析解符合得很好；同时在尾波的作用下，等离子体的部分电子被加速的很高的速度，甚至接近光速。
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| 关 键 词： | 粒子模拟 超短超强激光 稀薄 等离子体 激光 |
| 收稿时间： | 1997-03-20 |
A Numerical Study on the Interaction of High Intensity Ultrashort Laser with Underdense Plasma |
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| Lu Quanming Zhong Fangchuan Yu Wei Xu Zhizhan. A Numerical Study on the Interaction of High Intensity Ultrashort Laser with Underdense Plasma[J]. Acta Optica Sinica, 1998, 18(5): 37-540 |
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| Authors: | Lu Quanming Zhong Fangchuan Yu Wei Xu Zhizhan |
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| Abstract: | The interaction between high intensity ultrashort laser and underdense plasma is numerically studied by using a particle in cell simulation. The results show that wake waves and Raman waves are excited in the plasma after the interaction between high intensity ultrashort laser and underdense plasma, the wavelength and frequency are conformed with theory. In the meantime under the action of waves, part of electrons in the plasma are accelerated to very high velocity, even near to the light velocity. |
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| Keywords: | particle in cell simulation high intensity ultrashort laser underdense plasma. |
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