Solving surface plasmon resonances and near field in metallic nanostructures:Green’s matrix method and its applications  

作　　者：GU Ying LI Jia MARTIN Olivier J F GONG QiHuang 

机构地区：[1]State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, China [2]Nanophotonics and Metrology Laboratory, Swiss Federal Institute of Technology Lausanne (EPFL), CH-1015 Lausanne, Switzerland

出　　处：《Chinese Science Bulletin》2010年第24期2608-2617,共10页

基　　金：supported by the National Natural Science Foundation of China(10874004,10674009,10821062);National Basic Research Program of China(2007CB307001)

摘　　要：With the development of nanotechnology,many new optical phenomena in nanoscale have been demonstrated.Through the coupling of optical waves and collective oscillations of free electrons in metallic nanostructures,surface plasmon polaritons can be excited accompanying a strong near field enhancement that decays in a subwavelength scale,which have potential applications in the surface-enhanced Raman scattering,biosensor,optical communication,solar cells,and nonlinear optical frequency mixing.In the present article,we review the Green's matrix method for solving the surface plasmon resonances and near field in arbitrarily shaped nanostructures and in binary metallic nanostructures.Using this method,we design the plasmonic nanostructures whose resonances are tunable from the visible to near-infrared,study the interplay of plasmon resonances,and propose a new way to control plasmonic resonances in binary metallic nanostructures.With the development of nanotechnology, many new optical phenomena in nanoscale have been demonstrated. Through the coupling of optical waves and collective oscillations of free electrons in metallic nanostructures, surface plasmon polaritons can be excited accompanying a strong near field enhancement that decays in a subwavelength scale, which have potential applications in the surface-enhanced Raman scattering, biosensor, optical communication, solar cells, and nonlinear optical frequency mixing. In the present article, we review the Green＇s matrix method for solving the surface plasmon resonances and near field in arbitrarily shaped nanostructures and in binary metallic nanostructures. Using this method, we design the plasmonic nanostructures whose resonances are tunable from the visible to near-infrared, study the interplay of plasmon resonances, and propose a new way to control plasmonic resonances in binary metallic nanostructures.

关 键 词：表面等离子体共振 纳米结构 二元金属 矩阵方法 近场 应用 表面增强拉曼散射 表面等离子激元 

分 类 号：O151.21[理学—数学] TP212.3[理学—基础数学]