应用激光光谱法,对吸附在机械抛光金属表面的Rh6G分子的荧光增强和淬灭现象进行研究．结果表明,金属银和铜表面均对Rh6G荧光辐射具有增强作用,且银表面增强效果优于铜表面．Rh6G荧光分子与金属衬底表面距离增大到一定程度时,银表面仍会增强Rh6G的荧光辐射,而铜表面则表现出荧光淬灭效应．

The fluorescence enhancement and quenching of Rh6G absorbed on the mechanically polished Ag and Cu surfaces are investigated by using laser spectroscopic method. The result shows that both Ag and Cu surfaces present the fluorescence enhancement when Rh6G molecule absorbed on the surface. The factor of the fluorescence enhancement on Ag substrate is greater than that on the Cu substrate. Increasing the distance of the Rh6G molecules to the surface of the substrate, the Ag surface keep showing the enhancement effect to the fluorescence emission while the Cu substrate present fluorescence quenching effect.