Tailor the surface-wave properties of a plasmonic metal by a metamaterial capping
Tailor the surface-wave properties of a plasmonic metal by a metamaterial capping
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通过超材料封盖定制等离激元金属的表面波特性
DOI：
10.1364/oe.21.018178
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发表时间：
2013-07-29
期刊：
影响因子：
3.8
通讯作者：
Zhou, Lei
中科院分区：
文献类型：
--
作者：
Song, Zhengyong;Li, Xin;Zhou, Lei
研究表明，在等离子体表面放置超薄各向异性超材料层可以显著提高系统的表面波特性，从而支持同时具有横向磁（TM）和横向电（TE）极化的等离子体表面波。此外，生成的SW在某些情况下表现出杂化极化特性，并且在特定的传播方向范围内打开SW带隙。我们根据所提出的模型设计并制作了一个真实的结构，并结合微波实验和全波模拟来验证这些迷人的理论预测。最后讨论了该系统的几种潜在应用。(C) 2013年美国光学学会
We show that putting an ultra-thin anisotropic metamaterial layer on a plasmonic surface significantly enriches the surface wave (SW) characteristics of the system, which now supports SWs with transverse-magnetic (TM) and transverse-electric (TE) polarizations simultaneously. In addition, the generated SWs exhibit hybridized polarization characteristics in certain cases, and a SW band gap opens within a particular propagation direction range. We designed and fabricated a realistic structure based on the proposed model, and combined microwave experiments with full-wave simulations to verify the fascinating theoretical predictions. Several potential applications of the proposed system are discussed in the end. (C) 2013 Optical Society of America