论文标题
改进金纳米球的Drude-Lorentz介电函数
Improved Drude-Lorentz dielectric function for gold nanospheres
论文作者
论文摘要
在应用金纳米球的局部表面等离子体共振（LSPR）中，在电磁谱的视觉部分中应用了局部的表面等离子体共振（LSPR）。这项工作的一个重要方面是纳米球的介电函数的准确表示，纳米球的直径小于大体材料中传导电子的平均自由路径。本文介绍了散装黄金和纳米球的修饰的drude-lorentz介电函数的发展。这些模型已针对先前发表的实验工作进行了验证，并被证明对大于10 nm的直径球有效。
There is an ever-increasing body of research in applying the Localized Surface Plasmon Resonance (LSPR) of gold nanospheres for applications in the visual part of the electromagnetic spectrum. An important aspect of this work is the accurate representation of the dielectric function for nanospheres with diameters less than the mean free path of the conduction electrons in the bulk material. This paper describes the development of a modified Drude-Lorentz dielectric functions for bulk gold, and for nanosphere. The models are validated against previously published experimental work and are shown to be valid for spheres of diameters of greater than 10 nm.
