等离激元激励表面增强拉曼光谱检测技术与仪器  

Technologies and equipments of surface-enhanced Raman scattering based on surface plasmons

作　　者：李海波[1] 徐抒平[1] 刘钰[2,3] 付翠翠[1] 宣旭阳 王馨楠[1] 王海龙[1] 周吉[4,5] 徐蔚青[1] 

机构地区：[1]吉林大学超分子结构与材料国家重点实验室,长春130012 [2]应用光学国家重点实验室 [3]中国科学院长春精密机械与物理光学研究所,长春130033 [4]有机化工新材料湖北省协同创新中心 [5]湖北大学有机功能分子合成与应用教育部重点实验室,武汉430062

出　　处：《中国科学：化学》2013年第12期1669-1685,共17页SCIENTIA SINICA Chimica

基　　金：国家自然科学基金(20903043,20973075,21073073,21003034,91027010);国家重大科学仪器设备开发专项(2011YQ03012408);超分子结构与材料国家重点实验室开放课题(sklssm201330)资助

摘　　要：本文总结了近年来基于传播型表面等离激元(Propagating surface plasmons,PSPs)参与的表面增强拉曼(Surface-enhanced Raman scattering,SERS)技术和仪器方面的研究进展.内容主要包括3部分:(1)基于PSPs激励拉曼散射的装置和技术,包括在消逝场下激发PSPs共振增强拉曼的原理与装置、与表面等离子体共振(Surface plasmon resonance,SPR)传感技术的联用及新型结构的长程等离激元激励拉曼技术的研究进展;(2)通过引入局域型表面等离激元(Localized surface plasmons,LSPs)进一步增强SERS,进而实现PSPs-LSPs共同增强拉曼的超灵敏检测技术,包括在消逝场激发的PSPs基础上,增加纳米粒子实现的PSPs与LSPs共同增强拉曼的原理、装置,以及用该方法进行生物体系的免疫识别检测,此外,还在微纳周期结构上实现了PSPs与LSPs共同激励拉曼;(3)基于PSPs耦合的定向SERS技术,包括在消逝场结构和周期结构上实现SERS定向耦合发射以达到高激发和高收集效率的新技术.Recent developments on the technologies and equipments of surface plasmon-enhanced Raman scattering （SERS） based on the propagating surface plasmons （PSPs） are introduced in this review. It involves three aspects： （1） The principle and the configuration of PSPs-enhanced Raman spectroscopy are stated. The technology of the PSPs-based SERS in the evanescent field, the combination of SERS and SPR sensing, and the long-range SP-enhanced Raman scattering are included. （2） SERS based on the PSPs-LSPs co-enhancement for ultra-sensitive detection is introduced. Under the configuration of the PSPs-excited SERS in the evanescent field, the addition of metal nanoparticles resulted in the resonance of localized surface plasmons （LSPs）, which can further enhance the local electric field. Applications of the SPR-SERS spectroscopy for monitoring the recognition system of biomolecules are referred, which indicate that the sensitivities of SERS and SPR are both greatly improved. Besides, SERS on periodical metallic substrates due to the PSPs and LSPs co-excitation is achieved. （3） The directional SERS technology based on PSPs is shown. High SERS exciting and collecting efficiency could be achieved via the directional SERS technology.

关 键 词：表面增强拉曼 表面等离激元共振 传播型等离激元 消逝场 周期结构 SERS光谱仪 

分 类 号：O657.37[理学—分析化学]