光学学报, 1999, 19 (3): 364, 网络出版: 2006-08-09
飞秒和纳秒激光脉冲作用下等离子体X射线辐射特性
Characteristic of Plasma X-Ray Emissions Generated by Femtosecond and Nanosecond Laser Pulses
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。
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.
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. 钟方川, 邓健, 覃岭, 张正泉, 徐至展. Characteristic of Plasma X-Ray Emissions Generated by Femtosecond and Nanosecond Laser Pulses[J]. Acta Optica Sinica, 1999, 19(3): 364.
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