| 左手材料平面波导之间的耦合特性 |
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| 引用本文： | 沈陆发,王子华,汪敏.左手材料平面波导之间的耦合特性[J].半导体光电,2006,27(3):257-259. |
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| 作者姓名： | 沈陆发 王子华 汪敏 |
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| 作者单位： | 上海大学,通信与信息工程学院,上海,200072;湖州师范学院,理学院,浙江,湖州,313000;上海大学,通信与信息工程学院,上海,200072 |
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| 基金项目： | 上海市重点学科建设项目 |
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| 摘 要： | 从电磁场理论出发,求得芯层是右手材料,包层是左手材料的两个平面波导之间耦合系数的一般公式,引入归一化频率,归一化传播常数,作出耦合系数随归一化频率变化的曲线.进一步讨论了两个平面波导之间的距离和芯层折射率改变对该曲线的影响,从而得出含左手材料平面波导之间的耦合特性.
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| 关 键 词： | 左手材料 平面波导 耦合系数 |
| 文章编号： | 1001-5868(2006)03-0257-03 |
| 收稿时间： | 2006-02-22 |
| 修稿时间： | 2006年2月22日 |
Coupling Characteristics between Left-handed Material Slab Waveguides |
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| SHEN Lu-fa,WANG Zi-hua,WANG Min.Coupling Characteristics between Left-handed Material Slab Waveguides[J].Semiconductor Optoelectronics,2006,27(3):257-259. |
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| Authors: | SHEN Lu-fa WANG Zi-hua WANG Min |
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| Affiliation: | 1. School of Communication and Information Engineering,Shanghai University, Shanghai 200072 ,CHN; 2. College of Sciences, Huzhou Teachers College, Zhejiang 313000, CHN |
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| Abstract: | From electromagnetic field theory,a regular formula of the coupling coefficient between two slab waveguides consisting of right-handed materials as core layer and left-handed materials as cladding layer is derived.Normalized frequency and normalized propagation constant are respectively defined.The coupling coefficient curves as a function of normalized frequency are drawn.The influences of the variations of the distance between slab waveguides,and core layer refractive index on these curves are discussed.The coupling coefficient curves as a function of normalized frequency are drawn completely for the left-handed material slab waveguides. |
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| Keywords: | left-handed materials slab waveguides coupling coefficient |
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