基于355 nm激光在硬脆材料的表面标识研究  

Study on Surface Identification of Hard and Brittle Materials Based on 355 nm Laser

作　　者：陈媛[1,2] 李必成 王军馥[3] Chen Yuan;Li Bicheng;Wang Junfu(Shanghai Institute of Laser Technology,Shanghai 200233,China;Shanghai DPM Traceability Engineering Research Center,Shanghai 200233,China;Collections Conservation Research Center,Shanghai Natural History Museum(Branch of Shanghai Science and Technology Museum),Shanghai 20004l,China)

机构地区：[1]上海市激光技术研究所有限公司,上海200233 [2]上海激光直接物标溯源工程技术研究中心,上海200233 [3]上海自然博物馆(上海科技馆分馆)藏品保护研究中心,上海200041

出　　处：《应用激光》2024年第6期112-118,共7页Applied Laser

基　　金：上海市中央引导地方科技发展资金项目(YDZX20223100002001)。

摘　　要：针对透明玻璃既要满足玻璃的装饰性,也要满足对产品进行赋码追溯的高质量图形标识的需求,采用紫外纳秒激光源在常见透明玻璃材质(高硼硅玻璃、石英玻璃)表面进行激光直接标识的工艺研究。通过改变激光工艺参数来定量研究激光累计脉冲能量密度、峰值功率密度以及激光脉冲扫描方式对标识区域的完整性、粗糙度以及烧蚀深度的影响效果,从而寻找适合玻璃材料表面激光标识的工艺窗口。In this paper, in order to meet the needs of transparent glass decoration and high-quality graphic marking, UV nanosecond laser source is used to conduct laser direct identification technology research on the surface of transparent glass materials(high borosilicate glass, quartz glass). By changing the laser process parameters, the effects of the cumulative pulse energy density, peak power density and laser pulse scanning mode on the integrity, roughness and ablation depth of the marking area were studied, so as to understand the marking characteristics of two kinds of glass materials. The experiment results show that the cumulative pulse energy density mainly affects the integrity of the logo pattern. The peak power density determines the damage threshold of the material identification, and the filling mode with the short side scanning back and forward is more complete. Compared with high borosilicate material, quartz material has higher damage threshold and wider processing window.

关 键 词：紫外纳秒 玻璃 完整性 粗糙度 烧蚀深度 

分 类 号：TN249[电子电信—物理电子学]