Transformation-Optics Description of Nonlocal Effects in Plasmonic Nanostructures

被引：182

作者：

Fernandez-Dominguez, A. I. ^{[1
]}

Wiener, A. ^{[1
]}

Garcia-Vidal, F. J. ^{[2
]}

Maier, S. A. ^{[1
]}

Pendry, J. B. ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Dept Phys, London SW7 2AZ, England

[2] Univ Autonoma Madrid, Dept Fis Teor Mat Condensada, E-28049 Madrid, Spain

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 10期

基金：

英国工程与自然科学研究理事会;

关键词：

Nanostructures - Optical properties;

D O I：

10.1103/PhysRevLett.108.106802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We develop an insightful transformation-optics approach to investigate the impact that nonlocality has on the optical properties of plasmonic nanostructures. The light-harvesting performance of a dimer of touching nanowires is studied by using the hydrodynamical Drude model, which reveals nonlocal resonances not predicted by previous local calculations. Our method clarifies the interplay between radiative and nonlocal effects in this nanoparticle configuration, which enables us to elucidate the optimum size that maximizes its absorption and field enhancement capabilities.

引用

页数：5

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