纳米银基底表面增强拉曼散射效应仿真及优化  

Simulation and optimization of SERS effect in nano Ag substrates

作　　者：邸志刚[1,2] 姚建铨[1] 张培培[1] 贾春荣[2] 邴丕彬[1] 杨鹏飞[1] 郑一博[1,3] 

机构地区：[1]天津大学精密仪器与光电子工程学院,教育部光电信息科学与技术重点实验室,天津大学,天津300072 [2]河北联合大学电气工程学院,河北唐山063009 [3]河北省光电信息与地球探测技术重点实验室,石家庄经济学院,河北石家庄050031

出　　处：《激光与红外》2011年第8期850-855,共6页Laser & Infrared

基　　金：国家“973”计划项目(No.2010CB327801)资助

摘　　要：为了更大发挥拉曼光谱在生物检测及传感领域中的作用,表面增强拉曼散射中信号增强与基底复用之间平衡优化需求一直在激励着新型基底的发展。通过用有限元方法对不同银纳米结构(不同尺寸、不同大小、不同结构)基底的表面增强拉曼散射效应进行设计优化。对三种常见结构基底进行仿真,并对结果进行对比分析,表明仿真结果与已发表的相似基底实验结果一致。In order to strengthen the effect of Raman spectroscopy in bio-detection and sensor fields,the requirement to optimize the balance between signal enhancement and reproducibility in surface enhanced Raman scattering（SERS）is stimulating the development of novel substrates for enhancing Raman signals.The Raman enhancements produced from a variety of nanometer SERS substrates with different size,space,and shape are simulated and optimized by finite element electromagnetic simulation.A theoretical comparison between four major generic types of SERS substrate has been performed and the results are presented and discussed.The results of the simulation are consistent with the published experimental data of similar substrates.

关 键 词：拉曼散射 表面增强拉曼散射 有限元法 基底 纳米粒子 

分 类 号：O433[机械工程—光学工程]