激光击穿大气等离子体的光谱实验研究

林兆祥; 常启海; 程学武; 李发泉; 王嘉岷; 吴礼金; 龚顺生

doi:10.11804/NuclPhysRev.19.S1.088

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激光击穿大气等离子体的光谱实验研究

林兆祥, 常启海, 程学武, 李发泉, 王嘉岷, 吴礼金, 龚顺生

文章导航 > 原子核物理评论 > 2002 > 19(Suppl): 88-90

林兆祥, 常启海, 程学武, 李发泉, 王嘉岷, 吴礼金, 龚顺生. 激光击穿大气等离子体的光谱实验研究[J]. 原子核物理评论, 2002, 19(Suppl): 88-90. doi: 10.11804/NuclPhysRev.19.S1.088

引用本文:

LIN Zhao-xiang, CHANG Qi-hai, CHENG Xue-wu, LI Fa-quan, WANG Jia-min, WU Li-jin, GONG Shun-sheng. Spectrum-study of Air Plasmas by Laser-induced Breakdown[J]. Nuclear Physics Review, 2002, 19(Suppl): 88-90. doi: 10.11804/NuclPhysRev.19.S1.088

Citation:

LIN Zhao-xiang, CHANG Qi-hai, CHENG Xue-wu, LI Fa-quan, WANG Jia-min, WU Li-jin, GONG Shun-sheng. Spectrum-study of Air Plasmas by Laser-induced Breakdown[J]. Nuclear Physics Review, 2002, 19(Suppl): 88-90. doi: 10.11804/NuclPhysRev.19.S1.088

激光击穿大气等离子体的光谱实验研究

doi: 10.11804/NuclPhysRev.19.S1.088

中国科学院武汉物理与数学研究所湖北武汉

Spectrum-study of Air Plasmas by Laser-induced Breakdown

(Wuhan Institute of Physics and Mathematics; Chinese Aca demy of Sciences; Wuhan 430071; China);

摘要: 对一个大气压的N2 ,O2 和纯净空气 ,用YAG脉冲激光的 1 .0 6μm光束产生激光等离子体 ,对该等离子体在大约 40 0— 80 0nm谱段的发射光谱进行了实验研究 .实验表明 ,空气及其主要组分的激光等离子体光谱均由较强的连续光谱背景和迭加在其上的若干线状光谱组成 .随着光谱采样的延时 ,激光等离子体中各光谱组分的强度有很不相同的相对变化 .而且,处于等离子体不同空间部位发出的光谱 ,也有很大的不同 .对此类问题的定量分析正在进行之中.Plasmas were produced by laser-induced breakdo wn in nitrogen, oxygen and air at 1 atm using the 1.06 μm beam from an YAG la ser .The spectra of these plasmas in the range of 400-800 nm were obtained. The preliminary result shows that all the spectra consist of a strong continuous ba ckground and some line structures. With delay sampling, the spectra vary remarka bly. By sampling at the different position of the plasmas, the spectra change in a special way. The quantitative analysis is in progress.
- 激光 /
- 电离 /
- 大气 /
- 等离子体 /
- 光谱
Abstract: Plasmas were produced by laser-induced breakdo wn in nitrogen, oxygen and air at 1 atm using the 1.06 μm beam from an YAG la ser .The spectra of these plasmas in the range of 400-800 nm were obtained. The preliminary result shows that all the spectra consist of a strong continuous ba ckground and some line structures. With delay sampling, the spectra vary remarka bly. By sampling at the different position of the plasmas, the spectra change in a special way. The quantitative analysis is in progress.
- laser /
- ionization /
- air /
- plasma /
- spectra

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激光击穿大气等离子体的光谱实验研究

doi: 10.11804/NuclPhysRev.19.S1.088

中国科学院武汉物理与数学研究所湖北武汉

收稿日期: 1900-01-01
修回日期: 1900-01-01
刊出日期: 2002-07-20

关键词:

激光 /

电离 /

大气 /

等离子体 /

光谱

摘要: 对一个大气压的N2 ,O2 和纯净空气 ,用YAG脉冲激光的 1 .0 6μm光束产生激光等离子体 ,对该等离子体在大约 40 0— 80 0nm谱段的发射光谱进行了实验研究 .实验表明 ,空气及其主要组分的激光等离子体光谱均由较强的连续光谱背景和迭加在其上的若干线状光谱组成 .随着光谱采样的延时 ,激光等离子体中各光谱组分的强度有很不相同的相对变化 .而且,处于等离子体不同空间部位发出的光谱 ,也有很大的不同 .对此类问题的定量分析正在进行之中.Plasmas were produced by laser-induced breakdo wn in nitrogen, oxygen and air at 1 atm using the 1.06 μm beam from an YAG la ser .The spectra of these plasmas in the range of 400-800 nm were obtained. The preliminary result shows that all the spectra consist of a strong continuous ba ckground and some line structures. With delay sampling, the spectra vary remarka bly. By sampling at the different position of the plasmas, the spectra change in a special way. The quantitative analysis is in progress.