用于激光等离子体诊断实验的二倍频探针光系统
Second harmonic probe system for laser plasma diagnostics experiment
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摘要: 为了满足基准物理实验的要求,准确地探测出靶面的等离子体的电子温度、密度、电子离子漂移速度等参数,在星光Ⅱ激光装置上发展了一束二倍频激光作为探针光。通过模拟实验已经证实了该探针光的二倍频总能量大于5J,焦斑尺寸小于100μm,可以满足激光与等离子体相互作用的高功率要求。目前,该探针光系统已经用于用于激光等离子体诊断实验的常规运行。Abstract: For the characterization of ICF plasmas, A 2ω probe laser at the xingguang-Ⅱ laser facility was implemented. A total energy of >5J,a focal spot size of order 100μm was demonstrated for target shots. It fulfills high-power requirements for laser-plasma interaction experiments. The 2ω probe laser is now routinely used for laser-plasma diagnostics experiment.
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Key words:
- laser-plasma /
- 2ω probe laser
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