摘要
采取真空热蒸发镀膜的方法在普通玻璃、毛玻璃、硅片等衬底上镀银膜,并用扫描电子显微镜观察了镀银毛玻璃的表面形貌,通过激光散射实验得出毛玻璃的粗糙度.实验结果表明,镀银毛玻璃衬底具有很好的表面增强拉曼散射活性,所能探测罗丹明6G的最低浓度为10-10 mol/L.
Ag film was coated on several kinds of substrates using vacuum evaporation technolo-gy ,including glass ,frosted glass and silicon .The surface morphology of silver-coated frosted glass was observed by a scanning electron microscope .The roughness was obtained using laser scattering experiment .T he experimental results indicated that the Ag/frosted-glass substrate had excellent sur-face-enhanced Raman scattering activity and could detect rhodamine 6G at a minimum concentration of about 10-10 mol/L .
出处
《物理实验》
2014年第3期1-5,9,共6页
Physics Experimentation
基金
国家基础科学人才培养基金资助(No.J1103207)
中央高校基本科研业务费专项资金资助(No.WK2030000004)
关键词
真空镀膜
表面增强拉曼散射
银
罗丹明6G
激光散斑
vacuum evaporation
surface-enhanced Raman scattering
Ag
scanning electron mi-croscopy
rhodamine 6G
laser speckle
