| 低损耗传输太赫兹波的Topas多孔纤维设计 |
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| 引用本文： | 王豆豆,王丽莉.低损耗传输太赫兹波的Topas多孔纤维设计[J].红外与激光工程,2013,42(9):2409-2413. |
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| 作者姓名： | 王豆豆 王丽莉 |
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| 作者单位： | 1.西安科技大学 理学院,陕西 西安 710054; |
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| 基金项目： | 国家自然科学基金(61275106)；陕西省教育厅科研计划(2013JK1106)；西安科技大学博士启动金(2012QDJ043)；西安科技大学培育基金 |
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| 摘 要： | 以新型聚合物材料Topas环烯烃共聚物（COC）为基质，设计了一种能够低损耗传输太赫兹波的多孔纤维。应用全矢量有限元方法对传输特性的研究结果表明，该Topas多孔纤维在太赫兹波段具有宽带低损耗、低色散的特性:0.4~1.5 THz范围内的损耗小于0.2 cm-1；0.48~1.5 THz范围内的色散为1.80.3 psTHz-1cm-1。所设计的多孔纤维兼顾了结构简单、易于制备的特点。研究结论为Topas太赫兹波导的制备提供了理论指导。
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| 关 键 词： | 太赫兹波 Topas 环烯烃共聚物 聚合物多孔纤维 有限元方法 |
| 收稿时间： | 2013-01-05 |
Design of Topas porous fiber for low-loss Terahertz wave guiding |
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| Wang Doudou
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Wang Lili.Design of Topas porous fiber for low-loss Terahertz wave guiding[J].Infrared and Laser Engineering,2013,42(9):2409-2413. |
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| Authors: | Wang Doudou Wang Lili |
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| Affiliation: | 1.College of Science,Xi'an University of Science and Technology,Xi'an 710054,China;2.State Key Laboratory of Transient Optics and Photonics,Xi'an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi'an 710119,China |
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| Abstract: | A kind of porous fiber for low-loss Terahertz wave guiding was designed based on Topas cyclic olefin copolymer(Topas COC). Topas COC is a kind of novel Terahertz low-loss material. Terahertz wave was well confined in a series of subwavelength air holes, which were arranged in base material with triangular lattice. Propagation properties of the designed porous fiber were investigated by using the full-vector finite element method. The results indicated that the designed Topas porous fiber had low loss and low dispersion properties within Terahertz frequency. The loss was less than 0.2 cm-1 from 0.4 THz to 1.5 THz, and the dispersion was 1.80.3 ps/THz/cm within 0.48-1.5 THz. The designed fiber structure was relatively simple and feasible for fabrication. It can be fabricated by the thermo-drawing techniques of polymer preforms invented by our group. The results provided theoretical references for fabrication of Topas Terahertz low-loss and flexible fiber waveguides. |
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| Keywords: | Terahertz wave Topas COC polymer porous fiber finite element method |
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