表面等离子体激元的原理与应用  

Principles and Applications of Surface Plasmon Polaritons

作　　者：王强 陈泳竹 WANG Qiang;CHEN Yongzhu(College of Optoelectronic Engineering,Guangdong Polytechnic Normal University,Guangzhou 510665,China;Graduate School,Guangdong Polytechnic Normal University,Guangzhou 510665,China)

机构地区：[1]广东技术师范大学光电工程学院,广东广州510665 [2]广东技术师范大学研究生院,广东广州510665

出　　处：《材料研究与应用》2024年第1期81-94,共14页Materials Research and Application

基　　金：国家自然科学基金项目(61475038)。

摘　　要：光与物质之间的相互作用,被视为光学应用的最基础物理问题。由光与凝聚态物质之间的相互作用形成的表面等离子体激元(Surface Plasmon Polaritons, SPPs),是一种新型的元激发准粒子,因其具有独特的色散和局域场增强特性引起广泛关注。SPPs器件打破了传统光学衍射限制,在纳米光子器件中有独特优势,应用于微纳光子学的前沿研究。阐述了SPPs的色散关系、激发方式、传播形式和物理性质,重点探讨了SPPs在波导、近场光学、传感器、生物医疗、光子芯片、表面增强拉曼散射和太阳能电池等方面的应用,并提出了研究前景。The interaction between light and matter has always been of interest to researchers and is regarded as the most fundamental physical problem related to various optical applications.In this regard,a new type of meta-excited quasiparticles,surface plasmon polaritons(SPPs),which are formed by the interaction between light and condensed matter,have begun to emerge as a new type of quasiparticles due to their unique dispersion and local-field enhancement properties.SPPs devices break the traditional optical diffraction limitations and show their unique and significant advantages in nanophotonic devices,which are widely used in the frontiers of micro-and nanophotonics research.The paper briefly describes the dispersion relation,excitation mode,propagation form and physical properties of SPPs,focuses on the applications of SPPs in waveguides,near-field optics,sensors,biomedicine,photonic chips,surface-enhanced Raman scattering and solar energy,and looks forward to the potential applications and research prospects of SPPs.

关 键 词：表面等离子体激元 衍射极限 局域场增强 表面等离子体共振 亚波长光学应用 波导 光子芯片 原理 

分 类 号：O436[机械工程—光学工程]