| 微谐振环结构体内太赫兹增强效应 |
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| 引用本文： | 李建龙,邵文毅,曾冰,张彬,孙年春.微谐振环结构体内太赫兹增强效应[J].强激光与粒子束,2013,25(6):1513-1518. |
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| 作者姓名： | 李建龙 邵文毅 曾冰 张彬 孙年春 |
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| 作者单位： | 1.四川大学 原子核科学技术研究所, 成都 61 0064; |
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| 摘 要： | 基于严格电磁场理论，给出了微型谐振环形和Fishnet结构体内太赫兹波的严格表达式，并利用电磁场的边界条件分析了太赫兹波在微型谐振环形和Fishnet结构体内空间分布的增强效应。数值模拟结果表明:谐振环金属条附近的电场大于磁场，金属条附近的电场相对其他区域明显要强得多，开口处表现更为突出，太赫兹波在Fishnet结构体内电磁场的峰位处电场和磁场分布关于x对称；电场的极值出现在大十字架的上下四个角，而磁场的极值则出现在小十字架的上下两端点。同时用电磁场传输线理论对该现象作出一定的物理解释。收稿日期:; 修订日期:
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| 关 键 词： | 太赫兹波 左手材料 增强效应 微型谐振环 Fishnet结构 |
| 收稿时间： | 2012-11-28; |
Terahertz enhancement effect in micro-ring resonator structure |
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| Li Jianlong,Shao Wenyi,Zeng Bing,Zhang Bin,Sun Nianchun.Terahertz enhancement effect in micro-ring resonator structure[J].High Power Laser and Particle Beams,2013,25(6):1513-1518. |
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| Authors: | Li Jianlong Shao Wenyi Zeng Bing Zhang Bin Sun Nianchun |
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| Affiliation: | 1.Institute of Nuclear Science and Technology,Sichuan University,Chengdu 610064,China;2.School of Manufacturing Science and Engineering,Sichuan University,Chengdu 610065,China;3.College of Electronics and Information Engineering,Sichuan University,Chengdu 610065,China |
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| Abstract: | Based on the rigorous electromagnetic field theory, the rigorous expression of terahertz waves in micro-ring resonators with Ω shape and fishnet structure is given in this paper. With the boundary conditions of electromagnetic field, the enhancement effect of the spatial distribution of terahertz waves in the micro-ring resonator with Ω shape and fishnet structure is analyzed. The numerical results show that the electric field is greater than the magnetic field near the ring resonator metal strips. The electric field near the metal strips is obviously stronger than that in other regions, especially in the opening. The THz electric and magnetic fields in the peak position of electromagnetic field in fishnet structure are symmetry with respect to x. The extremum of the electric field appears in the four up and down corners of the large cross, while the extremum of the magnetic field appears in the upper and lower ends of the small cross. The physical interpretation of these phenomena is also given in the point view of the theory of electromagnetic field transmission lines. |
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| Keywords: | left-handed materials enhancement effects micro-ring resonator fishnet structure |
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