棱镜耦合到“定制”表面等离子体激元。

Prism coupling to 'designer' surface plasmons.

作者信息

Hibbins A P, Hendry E, Lockyear M J, Sambles J R

机构信息

Electromagnetic Materials Group, School of Physics, University of Exeter, Exeter EX4 4QL, United Kingdom.

出版信息

Opt Express. 2008 Dec 8;16(25):20441-7. doi: 10.1364/oe.16.020441.

DOI:10.1364/oe.16.020441

PMID:19065182

Abstract

The excitation of 'designer' surface-plasmon-like modes on periodically perforated metals is demonstrated at microwave frequencies using the classical method of prism-coupling. In addition we provide a complete formalism for accurately determining the dispersion of these surface modes. Our findings fully validate the use of metamaterials to give surface plasmon-like behavior at frequencies below the visible.

摘要

利用棱镜耦合的经典方法，在微波频率下演示了周期性穿孔金属上“定制”类表面等离子体模式的激发。此外，我们提供了一种完整的形式体系，用于精确确定这些表面模式的色散。我们的研究结果充分验证了超材料在低于可见光频率下呈现类表面等离子体行为的应用。