以激光烧蚀快脉冲放电激发土壤为例,研究了激光烧蚀快脉冲放电等离子体技术产生的土壤等离子体的电子数密度和温度。根据实验测得的Si原子和离子谱线的强度和萨哈玻尔兹曼方程,计算了等离子体的电子温度,并从分析Si I 250.69nm谱线的斯塔克展宽中导出了等离子体的电子数密度。与使用同样激光能量激发的激光等离子体相比,激光烧蚀快脉冲放电激发等离子体的电子数密度和温度都明显增加,与观察到的光谱信号强度是一致的。 Taking laser ablation of fast pulsed discharge as an example, the electron density and temperature of soil plasma generated by laser ablation fast pulsed discharge plasma were studied. Based on the experimentally measured intensities of Si atoms and ion spectra and the Sakha Boltzmann equation, the plasma electron temperature was calculated and the plasma was derived from the Stark broadening of the analyzed Si I 250.69 nm line Electronic number density. Compared with the laser plasma excited by the same laser energy, the electron density and the temperature of laser ablation rapid pulsed discharge excited plasma significantly increase, which is consistent with the observed spectral signal intensity.