Terahertz surface wave propagation and focusing on conical metal wires

被引：42
|
作者：
Liang, Huawei [1 ]
Ruan, Shuangchen [1 ]
Zhang, Min [1 ]
机构：
[1] Shenzhen Univ, Coll Elect Sci & Technol, Shenzhen 518060, Peoples R China
来源：
OPTICS EXPRESS | 2008年 / 16卷 / 22期
关键词：
D O I：
10.1364/OE.16.018241
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A theory for treating terahertz (THz) surface wave propagation and focusing on conical metal wire waveguides is presented. According to the theory, the surface wave propagation and focusing on the conical copper wire waveguide is investigated by the numerical calculation, and the results show the theory agrees with experimental measurement result obtained by Ji et al. The theory presented provides a basis for describing surface wave propagation and focusing on conical metal wire waveguides and, importantly, the theory suggests that a simple conical metal wire can be used for subwavelength energy concentration and superfocusing. (C) 2008 Optical Society of America
引用
收藏
页码：18241 / 18248
页数：8
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