| A New Type of Terahertz Waveguides |
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| 作者姓名： | 娄淑琴 郭铁英 方宏 李宏雷 简水生 |
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| 作者单位： | Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044 |
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| 基金项目： | Supported by the National High Technology Research Programmme of China under Grant No 2004AA31g200, and the Pandeng Fund of Beijing Jiaotong University under Grant No PD291. |
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| 摘 要： |
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| 关 键 词： | 波导 太赫 聚乙烯 光学特性 |
| 收稿时间： | 2005-10-15 |
| 修稿时间： | 2005-10-15 |
A New Type of Terahertz Waveguides |
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| LOU Shu-Qin, GUO Tie-Ying, FANG Hong, LI Hong-Lei, JIAN Shui- Sheng.A New Type of Terahertz Waveguides[J].Chinese Physics Letters,2006,23(1):235-238. |
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| Authors: | LOU Shu-Qin GUO Tie-Ying FANG Hong LI Hong-Lei JIAN Shui- Sheng |
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| Abstract: | A new type of THz waveguides, which employs a solid polyethylene rod as the core and polyethylene tubes in a periodic array of square lattice as the cladding, is proposed. Optical properties of this new THz waveguide, especially in dispersion, confinement loss and single mode property, are investigated in detail with the plane wave expansion method and the beam propagation method. Numerical results demonstrate that the new THz waveguide can reach not only low dispersion but also low confinement loss at single mode propagation. Therefore, the square lattice structure is a better candidate as THz waveguides than the triangular ones. |
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