光谱学与光谱分析 |
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Experimental Investigation on the Electron Temperature of Laser-Induced Mg Plasmas |
YAO Hong-bing1, NI Wen-qiang1*, YUAN Dong-qing2, YANG Zhao3, LI Qiang3 |
1. School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China 2. Faculty of Science, Huaihai Institute of Technology, Lianyungang 222069, China 3. Lianyungang Normal College, Lianyungang 222006, China |
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Abstract A series of plasma characteristic spectral lines of Mg alloy were obtained under nanosecond laser shock produced by a pulsed Nd∶YAG laser (1 064 nm, maximum energy 500 mJ), which was taken under standard atmospheric pressure and at room temperature. Results indicated that the evolutionary rates of spectral lines were different, and the laser energy was enough to ionization Mg alloy under this experimental condition by the spectral lines of MgⅠ,MgⅡ. The electron temperature of Mg plasma were calculated by the measured relative Emission-line intensity(MgⅠ383.2 nm, MgⅠ470.3 nm, MgⅠ518.4 nm). The experimental results showed that the secondary excitation Mg atoms could be got under this experimental condition. The electron temperature of Mg plasma decreased with the laser energy reduced while the laser energy was in the range of 200~500 mJ. When the laser energy was in the range of 350~500 mJ, the electron temperature changed rapidly. When the laser energy was in the range of 200~350 mJ, the electron temperature changed slowly and tended towards stability. It is found that when the laser energy was 300 mJ, the plasma temperature raised suddenly, which could not accord with the trend because of plasma shielding. When the laser energy was 300 mJ, the relative intensity of spectral lines was reduced which was lower than that of 350 and 250 mJ. And it is against the variation trend of the relative intensity of spectral lines increases with the increase of laser energy, which prove plasma shielding phenomenon had occurred and plasma with high power laser separate the coupling between laser and material. The plasma temperature was increased significantly, which is not consistent with the trend .When the plasma shielding phenomenon happened, laser energy was absorbed by the plasma, resulting in the rise of plasma temperature.
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Received: 2015-08-18
Accepted: 2015-12-25
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Corresponding Authors:
NI Wen-qiang
E-mail: oplkjf@qq.com
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[1] Cristoforetti G, Tognoni E. Spectrochimica Acta Part B: Atomic Spectroscopy, 2013, 90: 1. [2] Hahn D W, Omenetto N. Applied Spectroscopy, 2012, 66(4): 347. [3] Essington M E, Melnichenko G V, et al. Soil Science Society of America Journal, 2009, 73(5): 1469. [4] Bolger J A. Applied Spectrosc, 2000, 54(2): 181. [5] TANG Xiao-shuan,LI Chun-yan,ZHU Guang-lai,et al(唐晓闩,李春燕,朱光来,等). Chinese Journal of Lasers(中国激光), 2004, 31(6): 687. [6] YANG Zhao-rui,YUAN Ping,LI Zhong-wen,et al(杨兆锐,袁 萍,李忠文,等). Journal of Atomic and Molecular Physics(原子与分子物理学报), 2012, 29(2): 301. [7] LU Tong-xing,CUI Zhi-feng,YUE Xian-zhang(陆同兴,崔执凤,越献章). Chinese Journal of Lasers(中国激光), 1994, A21(2): 114. [8] ZHANG Shu-dong,CHEN Guan-ying,CHEN Yi-hui,et al(张树东,陈冠英,陈一辉,等). Chinese Journal of Quantum Electronics(量子电子学报), 2001, 18(1): 46. [9] CUI Zhi-feng,HUANG Shi-zhong,LU Tong-xing,et al(崔执凤,黄时中,陆同兴,等). Chinese Journal of Lasers(中国激光), 1996, A23(7): 627. [10] TONG Yan-qun,ZHANG Yong-kang,YAO Hong-bing,et al(佟艳群,张永康,姚红兵,等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2011, 31(9): 2542. [11] LU Tong-xing,LU Yi-qun(陆同兴,路轶群). Laser Spectrum Technique and Its Application(激光光谱技术原理及应用). Hefei: University of Science and Technology of China Press(合肥:中国科学技术大学出版社), 2009. 211. [12] Griem H R. Plasma Spectroscopy. McGraw-Hill, 1964. 139. [13] Lochte-Holtgreven W. Evalution of Plasma Parameter in Plasma Diagnostics. Amsterdam, 1968. 156. [14] KE Yi-kan,DONG Hui-ru(柯以侃,董慧茹). Analytical Chemistry Handbook(分析化学手册). Beijing: Chemical Industry Press(北京:化学工业出版社), 1998. 61. [15] Ready J F. Effect of High-power Laser Radiation. Academic Press, 1971. 67. |
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