中国激光, 2018, 45 (7): 0702006, 网络出版: 2018-09-11
正交再加热双脉冲激光诱导黄连等离子体的光谱特性 
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Spectral Characteristics of Coptis Chinensis Plasma Induced by Orthogonal Re-Heating Double-Pulse Laser
图 & 表
图 2. 黄连。(a) 采购的实物;(b) 制备后的样品
Fig. 2. Coptis Chinensis. (a) Purchased real objects; (b) samples after preparation
图 3. 4条特征谱线的光谱强度和信背比随探测延时的演化。(a) Fe I; (b) CN; (c) Ca II; (d) Al I
Fig. 3. Spectral intensities and SBRs of four characteristic spectral lines versus detection delay. (a) Fe I; (b) CN; (c) Ca II; (d) Al I
图 4. 不同激光能量组下4条特征谱线的光谱强度和SBR随脉冲间隔的变化。(a)(b) Fe I; (c)(d) CN; (e)(f) Ca II; (g)(h) Al I
Fig. 4. Spectral intensities and SBRs of four characteristic spectral lines versus pulse interval under different energy groups. (a)(b) Fe I; (c)(d) CN; (e)(f) Ca II; (g)(h) Al I
图 5. 4条特征谱线的光谱强度和信背比随脉冲间隔的变化规律(E1=15 mJ,E2=35 mJ,T1=1.5 μs)。(a) Fe I; (b) CN; (c) Ca II; (d) Al I
Fig. 5. Spectral intensities and SBRs of four characteristic spectral lines versus pulse interval (E1=15 mJ, E2=35 mJ, T1=1.5 μs). (a) Fe I; (b) CN; (c) Ca II; (d) Al I
图 7. 黄连样品Ca II谱线的Boltzmann线性拟合。(a) RDP-LIBS;(b) SP-LIBS
Fig. 7. Boltzmann linear fitting of Ca II spectral line of Coptis Chinensis samples. (a) RDP-LIBS; (b) SP-LIBS
图 8. 等离子体电子激发温度随探测延时的变化曲线
Fig. 8. Electron excitation temperature of plasma versus detection delay
表 14条特征谱线的光谱增强倍数和相对标准偏差
Table1. Enhancement factor of spectral intensity and RSD for four characteristic spectral lines
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表 2Boltzmann拟合所使用的Ca II谱线的光谱参数
Table2. Spectral parameters of Ca II spectral line used for Boltzmann fitting
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王金梅, 郑慧娟, 郑培超, 谭癸宁. 正交再加热双脉冲激光诱导黄连等离子体的光谱特性[J]. 中国激光, 2018, 45(7): 0702006. Jinmei Wang, Huijuan Zheng, Peichao Zheng, Guining Tan. Spectral Characteristics of Coptis Chinensis Plasma Induced by Orthogonal Re-Heating Double-Pulse Laser[J]. Chinese Journal of Lasers, 2018, 45(7): 0702006.
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