表面增强的分子间能量转移效应  

Surface-Enhanced Energy Transfer Effect Between Molecules

作　　者：潘多海[1] 马永红[1] 郇宜贤[1] 

机构地区：[1]陕西师范大学物理系,西安710062

出　　处：《光学学报》1996年第6期881-884,共4页Acta Optica Sinica

摘　　要：研究了粗糙金属银表面对分子间能量转移效应的影响。实验观察到吸附分子增强的敏化荧光，结合表面局域电磁理论分析表明，吸附于银表面的分子间非辐射能量转移速率被增强102倍，证实了表面增强的分子间能量转移效应的存在。Energy transfer effect between molecules adsorbed on rough silver surface has been studied by means of fluorescence spectroscopy. Enanced acceptor fluorescence and quenched donor fluorescence have been observed experimentally. On the basis of surface local electromagnetic theory, it is found that the non- radiative energy transfer rate between molecules adsorbed on silver surface is enhanced by two orders of magnitude when the molecular frequencies lie on the vicinity of resonance frequency of surface plasma. The results provide evidence for surface-enhanced energy transfer effect between molecules.

关 键 词：表面增强 喇曼散射 能量转移 J聚集体 分子 

分 类 号：O561.4[理学—原子与分子物理]