摘要
当入射电磁波频率与金属微纳米结构中自由电子的集体振荡频率相当时,金属微纳米结构中激发表面等离激元共振,其共振电磁场被强束缚在亚波长尺度以下界面附近,使其具备极大的电磁场局域能力.这一效应可以极大程度地增强电磁波与物质的相互作用,在金属表面等离激元耦合体系中尤为明显.本文简述了表面等离激元耦合效应、模式耦合理论以及对应的结构耦合体系.另外,还介绍了一类典型耦合体系在光谱增强中的重要应用,主要包括增强折射率传感、表面增强红外吸收、表面增强拉曼散射、表面增强光学非线性效应等.
Surface plasmon polariton is a surface oscillation wave that is bound at the interface between metal and dielectric material. Its oscillating electric field is strongly bound below the subwavelength scale near the interface, generating a huge enhancement of localized electromagnetic field, which can be used to greatly enhance the interaction between light and matter, particularly in metal surface plasmon coupling system. In this paper, we review the coupling effects, coupling theory, and typical coupling structures of the surface plasmon coupling systems. We also introduce a typical surface plasmon coupling system and its corresponding crucial applications in surface enhanced refractive index sensor, Raman scattering, near-infrared absorption, and nonlinear effect generation.
作者
朱旭鹏
石惠民
张轼
陈智全
郑梦洁
王雅思
薛书文
张军
段辉高
Zhu Xu-Peng;Shi Hui-Min;Zhang Shi;Chen Zhi-Quan;Zheng Meng-Jie;Wang Ya-Si;Xue Shu-Wen;Zhang Jun;Duan Hui-Gao(School of Physics Science and Technology,Lingnan Normal University,Zhanjiang 524048,China;Center for Research on Leading Technology of Special Equipment,School of Mechanical and Electric Engineering,Guangzhou University,Guangzhou 510006,China;College of Mechanical and Vehicle Engineering,State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body,Hunan University,Changsha 410082,China)
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2019年第14期147-166,共20页
Acta Physica Sinica
基金
国家自然科学基金(批准号:11574078,61674073)
湖南省自然科学基金(批准号:2015JJ1008,2015RS4024)
广东省科技计划(批准号:2017A050506056)
广东省重点基础与应用研究项目(批准号:2016KZDXM021)
大学物理教学团队(批准号:114961700249)
岭南师范学院自然基金(批准号:ZL1937)资助的课题~~
关键词
表面等离激元共振
模式耦合理论
耦合结构体系
光谱增强
surface plasmon reasonace
mode-coupling theory
coupling structures system
spectra enhancement
