Nonlocal Optical Response of Metal Nanostructures with Arbitrary Shape
Nonlocal Optical Response of Metal Nanostructures with Arbitrary Shape
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DOI：
10.1103/physrevlett.103.097403
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发表时间：
2009-08-28
影响因子：
8.6
通讯作者：
Schatz, George C.
中科院分区：
文献类型：
--
作者：
McMahon, Jeffrey M.;Gray, Stephen K.;Schatz, George C.
我们提出了一个实施的麦克斯韦方程组，其中包括材料的空间非局部响应，一个必要的效果来描述的光学特性的结构与功能小于10 nm。这是第一次有可能调查的非局部光学响应的结构没有球形或平面形状，和静电限制之外。作为一个例子，我们计算的光学性质的Au纳米线，并表明，非局部效应是特别重要的顶点功能的结构，即使是任意大的尺寸。
We present an implementation of Maxwell's equations that incorporates the spatially nonlocal response of materials, an effect necessary to describe the optical properties of structures with features less than 10 nm. For the first time it is possible to investigate the nonlocal optical response of structures without spherical or planar shape, and outside of the electrostatic limit. As an illustration, we calculate the optical properties of Au nanowires and show that nonlocal effects are particularly important in structures with apex features, even for arbitrarily large sizes.