哈尔滨工程大学学报2024，Vol.45Issue(3)：615-621,7.DOI:10.11990/jheu.202110054
红外偏振辐射模型对铬和铜元素的优化识别
Optimal identification of chromium and copper by an infrared polarized radiation model
摘要
Abstract
To optimize the identification of chromium and copper elements using laser-induced breakdown spectros-copy technology,a method combining infrared(IR)polarization detection theory is proposed in this paper.The generation mechanism of IR polarization was analyzed by using the Fresnel reflection law and Kirchhoff theory.The polarization characteristics of the target's IR spontaneous thermal radiation were verified in accordance with the energy conservation law.Furthermore,the plasma IR-polarized radiation signal model was derived to identify heavy-metal elements at each excitation energy based on the IR-polarized radiation transmission model and Fresnel reflection Mueller matrix,combined with the Maxwell Boltzmann distribution characteristics.The accuracy was ver-ified by five different energy-pulsed lasers.The results reveal that the IR-polarized radiation spectrum collected more characteristic signal peaks under the same laser energy,and this advantage was more prominent under low-energy excitation.Thus,the IR-polarized radiation model is a scientific and effective approach that can be used to optimize the rapid detection of heavy metals.关键词
红外偏振/辐射模型/重金属/特征信号/激光诱导击穿光谱/菲涅尔反射定律/脉冲激光/穆勒矩阵Key words
infrared polarization/radiation model/heavy metal/characteristic signal/laser-induced breakdown spectroscopy/Fresnel reflection law/pulse laser/Mueller matrix分类
数理科学引用本文复制引用
徐将,姚明印,王晓,万敏杰..红外偏振辐射模型对铬和铜元素的优化识别[J].哈尔滨工程大学学报,2024,45(3):615-621,7.基金项目
国家自然科学基金项目(31772072) （31772072）
江西省教育厅科技计划(GJJ190244). （GJJ190244）
