Acta Physica Sinica, Volume. 69, Issue 2, 029502-1(2020)
Figures & Tables(7)
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
Table 1. Identification of the observed emission lines of NI and OI
View tableView in ArticleTable 1. Identification of the observed emission lines of NI and OI
Species λ/nm Aki/s–1 Lower state Upper state Term symbol J Term symbol J O I 1128.6317 2.32 × 107 2s22p3(4S0)3p 3P 1 2s22p3(4S0)3d 3D° 2 O I 1128.6406 1.29 × 107 2s22p3(4S0)3p 3P 1 2s22p3(4S0)3d 3D° 1 O I 1128.6914 3.09 × 107 2s22p3(4S0)3p 3P 2 2s22p3(4S0)3d 3D° 3 O I 1128.7029 7.74 × 106 2s22p3(4S0)3p 3P 2 2s22p3(4S0)3d 3D° 2 O I 1128.7318 1.72 × 107 2s22p3(4S0)3p 3P 0 2s22p3(4S0)3d 3D° 1 O I 1129.5103 5.34 × 106 2s22p3(4S0)3p 5P 1 2s22p3(4S0)4s 5S° 2 O I 1129.7682 8.90 × 106 2s22p3(4S0)3p 5P 2 2s22p3(4S0)4s 5S° 2 O I 1130.2378 1.25 × 107 2s22p3(4S0)3p 5P 3 2s22p3(4S0)3d 5S° 2 N I 1129.167 1.20 × 107 2s22p2(3P)3p 4D° 7/2 2s22p2(3P)4s 4P 5/2 N I 1131.389 1.00 × 107 2s22p2(3P)3p 4D° 5/2 2s22p2(3P)4s 4P 3/2 N I 1132.318 8.19 × 106 2s22p2(3P)3p 4D° 3/2 2s22p2(3P)4s 4P 1/2 N I 1246.1253 1.82 × 107 2s22p2(3P)3p 2D° 3/2 2s22p2(3P)3d 2F 5/2 N I 1246.9615 2.18 × 107 2s22p2(3P)3p 2D° 5/2 2s22p2(3P)3d 2F 7/2 N I 1358.1323 5.76 × 106 2s22p2(3P)3 s 2P 3/2 2s22p2(3P)3p 2S° 1/2 N I 1358.7710 6.31 × 106 2s22p2(3P)3p 2D° 5/2 2s22p2(3P)4s 2P 3/2 N I 1360.227 1.07 × 107 2s22p2(3P)3p 2P° 1/2 2s22p2(3P)3d 2D 3/2 N I 1362.418 1.33 × 107 2s22p2(3P)3p 2P° 3/2 2s22p2(3P)3d 2D 5/2 N I 1475.7073 1.06 × 106 2s22p44P 5/2 2s22p2(3P)3p 4D° 7/2 N I 1558.2287 6.5 × 106 2s22p2(3P)3p 2P° 3/2 2s22p2(3P)4s 2P 3/2
Table 2. Comparison between predicted value and experimental value of the intensity of 1128 nm.
View tableView in ArticleTable 2. Comparison between predicted value and experimental value of the intensity of 1128 nm.
气体 气压/kPa 预测值 实验值 相对误差/% Air 80 169842 166903 1.76 70 148612 153136 2.95 60 127382 140317 9.21 50 106151 117673 9.79 40 84921 88516 4.06 30 63691 56575 12.56 20 42460 27964 51.80
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Xing-Sheng Wang, Yan-Ming Ma, Xun Gao, Jing-Quan Lin.
Paper Information
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Received: May. 18, 2019
Accepted: --
Published Online: Nov. 9, 2020
The Author Email: Lin Jing-Quan (linjingquan@cust.edu.cn)
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