脉冲激光刻蚀聚乙烯的蓝光发射  

Blue light emission from pulsed laser ablated polyethylene

作　　者：秦川丽[1] 赵淑芳[1] 李晨明[1] 白续铎[1] 姜海健[1] 谭强[1] 

机构地区：[1]黑龙江大学化工与材料学院

出　　处：《光电子．激光》2008年第2期168-170,共3页Journal of Optoelectronics·Laser

基　　金：黑龙江省自然科学重点基金资助项目(EJG0506-1);黑龙江省自然科学基金资助项目(E2004-23);哈尔滨市科学研究基金资助项目(2004AFXXJ046);黑龙江科技厅海外学人基金资助项目(WC03115);黑龙江教育厅海外学人基金资助项目(1053HZ003);黑龙江教育厅基金资助项目(11511271);黑龙江大学青年基金项目(QL200422)

摘　　要：采用波长为1064nm的激光束在不同激光功率下刻蚀聚乙烯(PE,polyethylene)透明薄膜表面,与刻蚀前的PE相比较,在紫外灯照射下,刻蚀后的PE发出明显的蓝光。采用扫描电镜(SEM)荧光光谱和Raman光谱等方法对激光刻蚀前后样品的表面形貌、表面结构和组成进行分析。结果表明,激光刻蚀使PE表面形成C=C双键,导致刻蚀后的PE发出明显的蓝光,激光强度的大小对PE表面物理性质和化学结构有重要的影响。A 1064 nm pulsed laser was used to ablate polyethylene（PE） using different current density. Compared with unmodified PE, the ablated PE gave off obvious blue light under UV lamp irradiation. The morphology and structure of modified and unmodified PE were studied by scanning electron microscope（SEM）, fluorescence spectroscopy and Rarnan spectroscopy. The results showed that double bonds existed in the ablated PE which resulted in its obvious blue emission and the intensity of the laser had a great influence on the physcical properties and chemical structure of the PE surface.

关 键 词：脉冲激光 表面刻蚀 聚乙烯(PE) 荧光 

分 类 号：TN383[电子电信—物理电子学]