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空气等离子体的时间行为对空气环境下激光诱导等离子体形成过程的研究有重要意义. 本文将纳秒Nd:YAG脉冲激光(1064 nm)聚焦于一个大气压的空气中,诱导其产生等离子体. 利用具有纳秒时间分辨功能的PI-MAX-II型ICCD,采用时间分辨光谱方法,研究了大气环境下激光诱导等离子体的时间行为. 大气环境下的激光诱导等离子体光谱广泛分布于300–900 nm范围内,并且是由带状光谱和线状光谱叠加而成的. 根据美国国家标准与技术研究院原子发射谱线数据库,对等离子体光谱中的氧、氮、氢等元素的特征谱线进行了识别和归属. 给出了激光诱导击穿大气等离子体光谱随时间演化的直观图像,根据空气等离子体发射谱线计算了等离子体电子温度和等离子体电子密度. 这些结果对于提高在大气环境下进行的在线测量结果的准确性和精确性具有重要的科学意义.The time-resolved spectra of the air-breakdown plasma generated by the nanosecond pulsed 1064 nm beam of a Nd:YAG laser are investigated by using a PI-MAX-II ICCD with nano-time-resolved features. The results show that the laser-induced plasma spectrum in atmospheric environment is widely distributed in a range of 300-900 nm, and it is superimposed by continuous spectra and sharp line spectra. The spectral lines of oxygen, nitrogen and hydrogen are identified according to the National Institute of Standards and Technology database of atomic emission. The intuitive figures of laser-induced breakdown atmospheric plasma spectra with time resolution are given. The electron temperature and electron density are calculated according to the emission spectra. The results have scientific significance for improving the accuracy and precision of the on-line measurement in the atmospheric environment.
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Keywords:
- laser induced breakdown spectrometry /
- air /
- plasma /
- time evolution
[1] Henry C A, Diwakar P K, Hahn D W 2007 Spectrochim. Acta B 62 1390
[2] Li Z C, Zheng J, Ding Y K, Yin Q, Jiang X H, Li S W, Guo L, Yang D, Wang Z B, Zhang H, Liu Y G, Zhan X Y, Tang Q 2010 Chin. Phys. B 19 125202
[3] Wang R R, Chen W M, Wang W, Dong J Q, Xiao S L 2010 Chin. Phys. B 19 075202
[4] Zhang L, Dong Q L, Wang S J, Sheng Z M, Zhang J 2010 Chin. Phys. B 19 078701
[5] Zhang N, Bao W X, Yang J H, Zhu X N 2013 Chin. Phys. B 22 054209
[6] Zhou Q H, Dong Z W 2013 Acta Phys. Sin. 62 205201 (in Chinese) [周前红, 董志伟 2013 62 205201]
[7] Meyand R G, Haught A F 1963 Phys. Rev. Lett. 11 401
[8] Lin Z X, Li X Y, Cheng X W, Li F Q, Gong S S 2003 Spectrosc. Spect. Anal. 23 421 (in Chinese) [林兆祥, 李小银, 程学武, 李发泉, 龚顺生 2003 光谱学与光谱分析 23 421]
[9] Lu X, Xi T T, Li Y J, Zhang J 2004 Acta Phys. Sin. 53 3404 (in Chinese) [鲁欣, 奚婷婷, 李英竣, 张杰 2004 53 3404]
[10] Hao Z Q, Zhang J, Li Y T, Lu X, Yuan X H, Zheng Z Y, Wang Z H, Ling W J, Wei Z Y 2005 Appl. Phys. B 80 627
[11] Martin F, Mawassi R, Vidal F, Gallimberti I, Comtois D, Pepin H, Kieffer J C, Mercure H P 2002 Appl. Spectrosc. 56 1444
[12] Lin Z X, Wu J Q, Sun F L, Gong S S 2010 Appl. Opt. 49 C80
[13] Bekefi G 1966 Radiation Processes in Plasmas (New York: Wiley) pp25-35
[14] David W K, Saum K A 1973 J. Appl. Phys. 44 5328
[15] Robert J N 1995 Appl. Spectrosc. 49 1490
[16] Li X Y, Lin Z X, Liu Y Y, Chen Y Q, Gong S S 2004 Acta Opt. Sin. 24 1051 (in Chinese) [李小银, 林兆祥, 刘煜炎, 陈扬锓, 龚顺生 2004 光学学报 24 1051]
[17] Ding H L, Gao L X, Zheng H Y, Wang Y P, Huang T, Ding L, Zhang W J, Fang L 2010 Spectrosc. Spect. Anal. 30 l (in Chinese) [丁慧林, 高立新, 郑海洋, 王颖萍, 黄腾, 丁蕾, 张为俊, 方黎 2010 光谱学与光谱分析 30 l]
[18] Lin Z X, Wu J Q, Gong S S 2006 Acta Phys. Sin. 55 5892 (in Chinese) [林兆祥, 吴金泉, 龚顺生 2006 55 5892]
[19] Pandhija S, Rai N K, Rai A K, Thakur S N 2010 Appl. Phys. B 98 231
[20] Shaikh N M, Hafeez S, Rashid B, Baig M A 2007 Eur. Phys. J. D 44 371
[21] Kondo H 2012 Spectrochim. Acta B 73 20
[22] Ahmed A I K 2013 Opt. Laser Technol. 45 443
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[1] Henry C A, Diwakar P K, Hahn D W 2007 Spectrochim. Acta B 62 1390
[2] Li Z C, Zheng J, Ding Y K, Yin Q, Jiang X H, Li S W, Guo L, Yang D, Wang Z B, Zhang H, Liu Y G, Zhan X Y, Tang Q 2010 Chin. Phys. B 19 125202
[3] Wang R R, Chen W M, Wang W, Dong J Q, Xiao S L 2010 Chin. Phys. B 19 075202
[4] Zhang L, Dong Q L, Wang S J, Sheng Z M, Zhang J 2010 Chin. Phys. B 19 078701
[5] Zhang N, Bao W X, Yang J H, Zhu X N 2013 Chin. Phys. B 22 054209
[6] Zhou Q H, Dong Z W 2013 Acta Phys. Sin. 62 205201 (in Chinese) [周前红, 董志伟 2013 62 205201]
[7] Meyand R G, Haught A F 1963 Phys. Rev. Lett. 11 401
[8] Lin Z X, Li X Y, Cheng X W, Li F Q, Gong S S 2003 Spectrosc. Spect. Anal. 23 421 (in Chinese) [林兆祥, 李小银, 程学武, 李发泉, 龚顺生 2003 光谱学与光谱分析 23 421]
[9] Lu X, Xi T T, Li Y J, Zhang J 2004 Acta Phys. Sin. 53 3404 (in Chinese) [鲁欣, 奚婷婷, 李英竣, 张杰 2004 53 3404]
[10] Hao Z Q, Zhang J, Li Y T, Lu X, Yuan X H, Zheng Z Y, Wang Z H, Ling W J, Wei Z Y 2005 Appl. Phys. B 80 627
[11] Martin F, Mawassi R, Vidal F, Gallimberti I, Comtois D, Pepin H, Kieffer J C, Mercure H P 2002 Appl. Spectrosc. 56 1444
[12] Lin Z X, Wu J Q, Sun F L, Gong S S 2010 Appl. Opt. 49 C80
[13] Bekefi G 1966 Radiation Processes in Plasmas (New York: Wiley) pp25-35
[14] David W K, Saum K A 1973 J. Appl. Phys. 44 5328
[15] Robert J N 1995 Appl. Spectrosc. 49 1490
[16] Li X Y, Lin Z X, Liu Y Y, Chen Y Q, Gong S S 2004 Acta Opt. Sin. 24 1051 (in Chinese) [李小银, 林兆祥, 刘煜炎, 陈扬锓, 龚顺生 2004 光学学报 24 1051]
[17] Ding H L, Gao L X, Zheng H Y, Wang Y P, Huang T, Ding L, Zhang W J, Fang L 2010 Spectrosc. Spect. Anal. 30 l (in Chinese) [丁慧林, 高立新, 郑海洋, 王颖萍, 黄腾, 丁蕾, 张为俊, 方黎 2010 光谱学与光谱分析 30 l]
[18] Lin Z X, Wu J Q, Gong S S 2006 Acta Phys. Sin. 55 5892 (in Chinese) [林兆祥, 吴金泉, 龚顺生 2006 55 5892]
[19] Pandhija S, Rai N K, Rai A K, Thakur S N 2010 Appl. Phys. B 98 231
[20] Shaikh N M, Hafeez S, Rashid B, Baig M A 2007 Eur. Phys. J. D 44 371
[21] Kondo H 2012 Spectrochim. Acta B 73 20
[22] Ahmed A I K 2013 Opt. Laser Technol. 45 443
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