Collective theory for surface enhanced Raman scattering
Collective theory for surface enhanced Raman scattering
复制标题
DOI：
10.1103/physrevlett.77.1163
复制
发表时间：
1996-08-05
影响因子：
8.6
通讯作者：
Pendry, JB
中科院分区：
文献类型：
--
作者：
GarciaVidal, FJ;Pendry, JB
为了研究光与金属表面的相互作用，我们提出了一种在自适应网格上实现麦克斯韦方程的方法。这是第一次有可能处理由复杂粒子组成的表面，这些粒子足够接近以产生强烈的相互作用。完全延迟的实施方式允许处理大颗粒以及小颗粒。举例来说，我们将粗糙的银表面建模为嵌入银表面中的半圆柱体阵列。由接触金属物体之间的强电磁耦合产生的非常局部化的等离子体激元模式主导表面增强拉曼散射响应。
We present an implementation of Maxwell's equations on adaptive meshes in order to study interaction of light with metal surfaces. For the first time it is possible to handle surfaces consisting of complex particles close enough to interact strongly. A fully retarded implementation allows treatment of large particles as well as small. By way of example we model a rough silver surface as an array of half-cylinders embedded in a silver surface. Very localized plasmon modes, created by strong electromagnetic coupling between touching metallic objects, dominate the surface enhanced Raman scattering response.