| 飞秒和纳秒激光脉冲作用下等离子体X射线辐射特性 |
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| 引用本文： | 钟方川,邓健,覃岭,张正泉,徐至展.飞秒和纳秒激光脉冲作用下等离子体X射线辐射特性[J].光学学报,1999,19(3):364-368. |
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| 作者姓名： | 钟方川 邓健 覃岭 张正泉 徐至展 |
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| 作者单位： | 中国科学院上海光学精密机械研究所强光光学开放研究实验室,上海,201800 |
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| 摘 要： | 对飞秒和纳秒激光作用下的Ａｌ和Ｃｕ等离子体的Ｘ射线辐射进行了测量、分析和比较．实验结果表明在飞秒激光脉冲下等离子体Ｘ射线峰值向短波方向移动．同时Ａｌ等离子体的的电离阶数和温度在飞秒下比纳秒高．
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| 关 键 词： | 超短超强激光 等离子体 X射线谱 |
| 收稿时间： | 1998/2/11 |
Characteristic of Plasma X-Ray Emissions Generated by Femtosecond and Nanosecond Laser Pulses |
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| Zhong Fangchuan,Deng Jian,Zhang Zhengquan,Qing Ling,Xu Zhizhan.Characteristic of Plasma X-Ray Emissions Generated by Femtosecond and Nanosecond Laser Pulses[J].Acta Optica Sinica,1999,19(3):364-368. |
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| Authors: | Zhong Fangchuan Deng Jian Zhang Zhengquan Qing Ling Xu Zhizhan |
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| Abstract: | The X-ray emission from Al and Cu plasma generated by femtosecond and nanosecond laser pulses have been measured and comparied. The irradiaton intensities of fs and ns laser pulses are 8.9×1015 and 3.8×1011 W/cm2 respectively. The experimental results show that under fs laser irradiation the emission peak is shifted to shorter wavelength. The ionization stage and temperature of fs Al Plasma is higher than that produced by ns laser. |
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| Keywords: | ultrashort intense laser plasmas X-ray spectrum |
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