Xing-Sheng Wang, Yan-Ming Ma, Xun Gao, Jing-Quan Lin. Near infrared characteristics of air plasma induced by nanosecond laser [J]. Acta Physica Sinica, 2020, 69(2): 029502-1
- Acta Physica Sinica
- Vol. 69, Issue 2, 029502-1 (2020)
Fig. 1. Experiment setup for the near infrared emissions from ns laser-induced air plasma.纳秒激光诱导空气等离子体近红外辐射实验装置
Fig. 2. IR emissions of laser-induced air plasma varied with laser energy after 15 μs delay time.不同能量下激光诱导空气等离子体在激光作用15 μs后测到的红外辐射光谱
Fig. 3. IR emissions of laser-induced air and N2 plasma under 80 kPa.
80 kPa气压下激光诱导空气和氮气等离子体红外辐射光谱
Fig. 4. IR emissions of laser-induced plasma of mixed gas with different pressure.O2和N2气体不同压强比的激光诱导等离子体红外辐射光谱
Fig. 5. The fitting result of binary linear regression analysis.二元线性回归分析结果
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Table 1. Identification of the observed emission lines of NI and OI
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Table 2. Comparison between predicted value and experimental value of the intensity of 1128 nm.
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