The comparison of manganese spectral lines for self-absorption reduction in LIBS using laser-induced fluorescence  

作　　者：唐云 李菁锋 马世祥 胡桢麟 彭旭翔 周伟平 袁晓 沈萌 Yun TANG;Jingfeng LI;Shixiang MA;Zhenlin HU;Xuxiang PENG;Weiping ZHOU;Xiao YUAN;Meng SHEN(Hunan Province Key Laboratory of Intelligent Sensors and Advanced Sensor Materials,School of Physics and Electronic Science,Hunan University of Science and Technology,Xiangtan 411201,People's Republic of China;National Engineering Research Center of Intelligent Equipment for Agriculture,Beijing Academy of Agriculture and Forestry Sciences,Beijing 100097,People's Republic of China;Wuhan National Laboratory for Optoelectronics(WNLO),Huazhong University of Science and Technology,Wuhan 430074,People's Republic of China)

机构地区：[1]Hunan Province Key Laboratory of Intelligent Sensors and Advanced Sensor Materials,School of Physics and Electronic Science,Hunan University of Science and Technology,Xiangtan 411201,People's Republic of China [2]National Engineering Research Center of Intelligent Equipment for Agriculture,Beijing Academy of Agriculture and Forestry Sciences,Beijing 100097,People's Republic of China [3]Wuhan National Laboratory for Optoelectronics(WNLO),Huazhong University of Science and Technology,Wuhan 430074,People's Republic of China

出　　处：《Plasma Science and Technology》2023年第6期82-87,共6页等离子体科学和技术（英文版）

基　　金：financially supported by National Natural Science Foundation of China(No.62005078);the Scientific Research Foundation of Hunan Provincial Education Department(No.21B0477);the Natural Science Foundation of Hunan Province(No.2020JJ5206)。

摘　　要：The detection of manganese(Mn)in steel by laser-induced breakdown spectroscopy(LIBS)provides essential information for steelmaking.However,self-absorption greatly disrupts the LIBS spectral lines of Mn with high content.In this study,to minimize self-absorption for Mn spectral lines in LIBS,laser-induced fluorescence(LIF)was applied.Compared with conventional LIBS,the self-absorption factors(α)of Mn I 403.08,403.31,and 403.45 nm lines were reduced by 90%,88%,and 88%,respectively;the root mean square errors of crossvalidation were decreased by 88%,85%,and 87%,respectively;the average relative errors were reduced by 93%,90%,and 91%,respectively;and average relative standard deviations were decreased by 29%,32%,and 33%,respectively.The LIBS-LIF was shown to successfully minimize the self-absorption effect and spectral intensity fluctuation and improve detection accuracy.

关 键 词：laser-induced breakdown spectroscopy SELF-ABSORPTION LIBS-LIF 

分 类 号：TF701.3[冶金工程—钢铁冶金] TN249[电子电信—物理电子学]