Surface Plasmon Resonant THz Wave Transmission on Carbon Nanotube Film
Surface Plasmon Resonant THz Wave Transmission on Carbon Nanotube Film
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DOI：
10.1007/s11468-011-9322-4
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发表时间：
2012-09
期刊：
影响因子：
3
通讯作者：
Yue Wang;Xuan Wang;Qun Wu;Xunjun He;T. Gui;Yijing Tong
中科院分区：
文献类型：
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作者：
Yue Wang;Xuan Wang;Qun Wu;Xunjun He;T. Gui;Yijing Tong
研究了碳纳米管薄膜和介质界面上的太赫兹共振表面等离子体波的特性。作为第一步工程太赫兹表面等离子体表面模式，我们提出了一个计算机实验来证明，碳纳米管膜表面也可以用来集中和引导太赫兹表面等离子体波。碳纳米管膜是在实验上可实现的几何模型。结果表明，当自由空间宽带太赫兹脉冲入射到带有亚波长光栅的碳纳米管薄膜上时，碳纳米管薄膜/介质界面沿着可支持一个独特的太赫兹电磁表面模.与贵金属相比，基于碳纳米管薄膜的等离子体纳米结构材料提供了一种潜在的更通用的方法来工程紧限制的表面模式在太赫兹制度。
The properties of the terahertz resonant surface plasmons wave on the carbon nanotube film and dielectric interface have been investigated. As a first step towards engineering terahertz SPPs-like surface modes, we present a computer experiment to demonstrate that the carbon nanotube film surface can also be employed to concentrate and guide the terahertz SPPs wave. The carbon nanotube film is modeled in an experimentally realizable geometry. It is shown that a unique electromagnetic surface mode in terahertz region can be supported along the carbon nanotube film/dielectric interface when the free-space broadband terahertz pulse is incident on the carbon nanotube film with subwavelength gratings. Comparing with noble metals, plasmonic nano-structure materials based on carbon nanotube film offer a potentially more versatile approach to engineering tightly confined surface modes in the THz regime.