9Chen John C,Taniguchi Masayuki,Narato Kiyoshi,et al.Laser Ignition of Pulverized Coals[J].Combustion and Flame,1994,97(1):107~117.
10Phuoc T X,White C M.Experimental studies of the absorption and emissions from laser-induced spark in combustible gases[J].Opt.Commun,2000,181(4~6):353~359.