表面等离子体共振与表面增强拉曼散射相关性研究  

Study on the Relationship of Surface Plasmon and Resonance Surface-Enhanced Raman Scattering

作　　者：刘钰[1] 徐抒平[1] 唐彬[1] 徐蔚青[1] 

机构地区：[1]长春市吉林大学超分子结构与材料国家重点实验

出　　处：《光散射学报》2010年第1期29-33,共5页The Journal of Light Scattering

基　　金：国家自然科学基金(NSFC20773045与20627002);111计划(B06009);吉林大学种子基金(20805045)

摘　　要：本实验利用实验室搭建的SPR-SERS显微拉曼光谱仪同时检测了吸附在40 nm银膜上的4-amin-othiophenol(4-ATP)自组装膜的表面等离子体共振(Surface Plasmon Resonance,简称SPR)消光谱及表面增强拉曼散射(Surface-Enhanced Raman Scattering,简称SERS)光谱,研究了两者之间的相关性。实验发现随着SPR吸收的增强,SERS强度也急剧增强,在SPR共振角附近SERS强度是远离共振角处的20多倍。因此在共振角附近能够极大的提高SERS的检测灵敏度并扩展SERS的应用。Surface enhanced Raman scattering（SERS） spectra and surface plasmon resonance（SPR） of 4-aminothiophenol（4-ATP） absorbed on 40 nm sliver film were simultaneously recorded by using SPR-SERS micospectrometer.And we studied the relationship of SPR and SERS.We found the intensity of SERS of 4-ATP increased with the increasing of the SPR absorption of 4-ATP modified silver film.The SERS signals acquired under the resonance condition was about twenty fold larger than those acquired under the unresonance condition,which would increase the sensitivity of SERS detection and widen the application of SERS.

关 键 词：表面等离子体共振 表面增强拉曼散射 同步检测 共振角 

分 类 号：O436.2[机械工程—光学工程]