强激光与粒子束2024，Vol.36Issue(9)：10-16,7.DOI:10.11884/HPLPB202436.240144
金属微结构表面增强激光诱导击穿光谱的强度与稳定性
Spectral intensity and stability of surface-enhanced laser-induced breakdown spectroscopy of metallic microstructure
摘要
Abstract
To enhance the performance of laser-induced breakdown spectroscopy(LIBS)for the analysis of element Cr in solutions,a surface-enhanced LIBS technique combining metallic microstructures is proposed.Initially,using femtosecond laser surface texturing technology,various shapes and cycles of microstructures including rectangles,circles,triangles,and hexagons were etched on the surface of metallic aluminum.Through comparative analysis,the effects of different microstructures on the surface-enhanced LIBS spectral intensity and stability of Cr-element aqueous solutions deposited on them were investigated.The results indicate that smaller microstructure cycles result in more significant spectral enhancement,with rectangular microstructures demonstrating the optimal spectral enhancement at the same period,increasing the spectral intensity by approximately four times compared to untreated metallic aluminum.Furthermore,hexagonal microstructures exhibit the best spectral stability and repeatability.These findings provide a viable method for substrate preparation for applying surface-enhanced LIBS techniques to the detection of heavy metal elements in aqueous solutions.关键词
激光诱导击穿光谱/表面增强/微结构/飞秒激光/稳定性Key words
laser-induced breakdown spectroscopy/surface-enhancement/microstructure/femtosecond laser/stability分类
数理科学引用本文复制引用
祁言兵,汤家原,姜蒙恩,周卫东..金属微结构表面增强激光诱导击穿光谱的强度与稳定性[J].强激光与粒子束,2024,36(9):10-16,7.基金项目
国家自然科学基金项目(61975186) （61975186）
