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| 光波辐射下正多边形异向介质柱聚焦特性分析 | |
| 引用本文： | 胡宝晶,黄铭,张剑龙,彭金辉.光波辐射下正多边形异向介质柱聚焦特性分析[J].光子学报,2009,38(5):1264-1267. |
| 作者姓名： | 胡宝晶 黄铭 张剑龙 彭金辉 |
| 作者单位： | 1. 云南大学,信息学院,通信工程系,昆明,650091 2. 云南大学,信息学院,通信工程系,昆明,650091;昆明理工大学,材料与冶金工程学院,昆明,650093 3. 昆明理工大学,材料与冶金工程学院,昆明,650093 |
| 基金项目： | 国家自然科学基金重点项目，云南省自然科学基金 |
| 摘 要： | 基于时域有限差分方法,建立了光波辐射下正三角形、正四边形和正六边形无耗异向介质柱的二维电磁模型.分析了其近场特性,并对模型的有效性进行了验证.仿真结果表明:即便对于εr和μr都很小且无耗的正多边形异向介质柱,当平面光波沿正多边形顶角角平分线方向传播时,在异向介质柱内不会发生电磁聚焦. |
| 关 键 词： | 聚焦特性 时域有限差分方法 异向介质 平面光波 |
| 收稿时间： | 2008-01-18 |
| 修稿时间： | 2008-02-29 |
Focus Character for Metamaterial Volume with Regular Polygon Structure under Light Irradiation |
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| HU Bao-jing,HUANG Ming,ZHANG Jian-long,PENG Jin-hui.Focus Character for Metamaterial Volume with Regular Polygon Structure under Light Irradiation[J].Acta Photonica Sinica,2009,38(5):1264-1267. | |
| Authors: | HU Bao-jing HUANG Ming ZHANG Jian-long PENG Jin-hui |
| Institution: | (1 School of Information Science and Engineering,Yunnan University,Kunming 650091,China) (2 Faculty of Materials and Metallurgical Engineering,Kunming University of Science and Technology,Kunming 650093,China) |
| Abstract: | Based on FDTD method,a two dimensional model for metamaterial volume with regular triangle,quadrangle and hexagon structure under light irradiation was presented.The focus characters of the model were analyzed and its validity was tested.The simulation results show that when light wave propagates along the angular bisector of corner angle in metamaterial volume,the electromagnetic focus effect will not exist in the metamaterial volume,although the permittivity and permeability of metamaterial are very small. |
| Keywords: | Focus charaters FDTD Metamaterials Plane light wave |
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