[1] [1] F Brech, L Cross. Optical microemission stimulated by a ruby laser[J]. Appl Spectrosc, 1962, 16(2): 59-64.

[2] [2] A W Mizlolek, V Palleschi, I Scbechtcr. Laser-Induced Breakdown Spectroscopy (LIBS)[M]. Cambridge: Cambridge University Press, 2006.

[3] [3] P K Srungaram, K K Ayyalasomayajula, F Yuyueh, et al.. Comparison of laser induced breakdown spectroscopy and spark induced breakdown spectroscopy for determination of mercury in soils[J]. Spectrochimica Acta Part B: Atomic Spectroscopy, 2013, 87: 108-113.

[4] [4] S Duchêne, V Detalle, R Bruder, et al.. Chemometrics and laser induced breakdown spectroscopy (LIBS) analyses for identification of wall paintings pigments[J]. Current Analytical Chemistry, 2010, 6(1): 60-65.

[5] [5] E M Emara, H Imam, M A Hassan, et al.. Biological application of laser induced breakdown spectroscopy technique for determination of trace elements in hair[J]. Talanta, 2013, 117: 176-183.

[6] [6] J D Pedarnig, P Kolmhofer, N Huber, et al.. Element analysis of complex materials by calibration-free laser-induced breakdown spectroscopy[J]. Applied Physics A, 2013, 112(1): 105-111.

[7] [7] Chen Jinzhong, Chen Zhenyu, Ma Ruiling, et al.. Effect of spatial confinement of carbon sheets on the soil plasma radiation characteristics[J]. Chinese J Lasers, 2013, 40(1): 0115002.

[8] [8] Yan Jing, Ding Lei, Ge Linlin, et al.. Research about analysis of heavy metals in liquid jet by laser-induced breakdown spectroscopy[J]. Chinese J Lasers, 2012, 39(2): 0215001.

[9] [9] Du Chuang, Gao Xun, Shao Yan, et al.. Analyses of heavy metals by soil using dual-pulsed laser induced breakdown spectroscopy[J]. Acta Physica Sinica, 2013, 62(4): 045202.

[10] [10] Liu Lituo, Liu Jianguo, Zhao Nanjing, et al.. Application of correlative analysis with an alterable and scannable window in spectral automatic recognition laser-induced breakdown spectroscopy[J]. Acta Optica Sinica, 2012, 32(10): 1030002.

[11] [11] Wang Chunlong, Liu Jianguo, Zhao Nanjing, et al.. Quantitative analysis of laser-induced breakdown spectroscopy of heavy metals in water based on support-victor-machine regression[J]. Acta Optica Sinica, 2013, 33(3): 0330002.

[12] [12] S H Tavassoli, Cravetchi I V, Fedosejevs R. Spatial and temporal evolution of laser-generated microplasmas[J]. IEEE Transactions on Plasma Science, 2006, 34(6): 2594-2599.

[13] [13] G Cristoforetti, S V Legnaioli, V Palleschi, et al.. Characterization of a collinear double pulse laser-induced plasma at several ambient gas pressures by spectrally-and time-resolved imaging[J]. Applied Physics B, 2005, 80(4-5): 559-568.

[14] [14] L B Guo, W Hu, B Y Zhang, et al.. Enhancement of optical emission from laser-induced plasmas by combined spatial and magnetic confinement[J]. Optics Express, 2011, 19(15): 14067-14075.

[15] [15] M Corsi, G Cristoforetti, M Giuffrida, et al.. Three-dimensional analysis of laser induced plasmas in single and double pulse configuration[J]. Spectrochimica Acta Part B: Atomic Spectroscopy, 2004, 59(5): 723-735.

[16] [16] X Zeng, X L Mao, R Greif, et al.. Experimental investigation of ablation efficiency and plasma expansion during femtosecond and nanosecond laser ablation of silicon[J]. Applied Physics A, 2005, 80(2): 237-241.

[17] [17] R J Goldston, P H Rutherford. Introduction to Plasma Physics[M]. Boca Raton: CRC Press, 2010.

[18] [18] X Chen, B M Bian, Z H Shen, et al.. Equations of laser-induced plasma shock wave motion in air[J]. Microwave and Optical Technology Letters, 2003, 38(1): 75-79.

[19] [19] NIST. NIST Atomic Spectra Database Lines Form[OB/OL]. 2014-08-26. http://physics.nist.gov/PhysRefData/ASD/lines_form.html.

[20] [20] A Elhassan, A Giakoumaki, D Anglos, et al.. Nanosecond and femtosecond laser induced breakdown spectroscopic analysis of bronze alloys[J]. Spectrochimica Acta Part B: Atomic Spectroscopy, 2008, 63(4): 504-511.

[21] [21] M S Cheri, S H Tavassoli. Quantitative analysis of toxic metals lead and cadmium in water jet by laser-induced breakdown spectroscopy[J]. Applied Optics, 2011, 50(9): 1227-1233.

[22] [22] A De Giacomo, M Dell′Aglio, R Gaudiuso, et al.. Effects of the background environment on formation, evolution and emission spectra of laser-induced plasmas[J]. Spectrochimica Acta Part B: Atomic Spectroscopy, 2012, 78: 1-19.

[23] [23] P Zheng, H Liu, J Wang, et al.. Optimization of experimental condition by orthogonal test design in a laser-induced breakdown experiment to analyze aluminum alloys[J]. Analytical Methods, 2014, 6(7): 2163-2169.

[24] [24] A A I Khalil. A comparative spectroscopic study of single and dual pulse laser produced UV tin plasmas[J]. Optics & Laser Technology, 2013, 45: 443-452.

[25] [25] J P Singh, S N Thakur. Laser-Induced Breakdown Spectroscopy[M]. Oxford: Elsevier, 2007.

[26] [26] C Colon, G Hatem, E Verdugo, et al.. Measurement of the Stark broadening and shift parameters for several ultraviolet lines of singly ionized aluminum[J]. Journal of Applied Physics, 1993, 73(10): 4752-4758.

[27] [27] R W P McWhirter. Plasma Diagnostic Techniques[M]. New York: Academic Press, 1965.