| 双层金属线平面手征结构的强旋光性和负折射率研究 |
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| 引用本文： | 李杰,杨方清,董建峰.双层金属线平面手征结构的强旋光性和负折射率研究[J].物理学报,2011,60(12):124202-124202. |
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| 作者姓名： | 李杰 杨方清 董建峰 |
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| 作者单位： | 宁波大学光纤通信与网络技术研究所,宁波 315211 |
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| 基金项目： | 国家自然科学基金(批准号:61078060)、浙江省自然科学基金(批准号:Y1091139)、宁波市科技创新团队计划(批准号:2009B21007),宁波市工业攻关计划(批准号:2008B10042)和宁波大学王宽诚幸福基金资助的课题. |
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| 摘 要： | 提出一种由四重对称的金属线构成的双层平面手征结构,并对两层金属线之间旋转角θ和介质层厚度h进行了优化. 数值模拟结果显示,在一定的θ和h下,该结构在近红外波段具有极强的旋光性和大的手征参数,且在一定的波段范围内具有负折射率.
关键词：
手征介质
旋光性
手征参数
负折射率
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| 关 键 词： | 手征介质 旋光性 手征参数 负折射率 |
| 收稿时间： | 2011-01-12 |
| 修稿时间： | 7/5/2011 12:00:00 AM |
Investigation on strong optical activity and negative refractive index in double-layer metallic wires planar chiral structure |
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| Li Jie,Yang Fang-Qing and Dong Jian-Feng.Investigation on strong optical activity and negative refractive index in double-layer metallic wires planar chiral structure[J].Acta Physica Sinica,2011,60(12):124202-124202. |
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| Authors: | Li Jie Yang Fang-Qing and Dong Jian-Feng |
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| Institution: | Institute of Optical Fiber Communication and Network Technology, Ningbo University, Ningbo 315211, China;Institute of Optical Fiber Communication and Network Technology, Ningbo University, Ningbo 315211, China;Institute of Optical Fiber Communication and Network Technology, Ningbo University, Ningbo 315211, China |
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| Abstract: | A planar chiral structure composed of double-layer metallic wires with fourfold symmetry is proposed. The rotation angle and the dielectric layer thickness between double-layer metallic wires is optimized. The numerical simulation results show that the exceptionally strong polarization rotation and the large chiral parameter are found at the infrared wavelength, and show a negative refraction index in a certain band. |
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| Keywords: | chiral media optical activity chiral parameter negative refraction index |
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