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电子学报  2015 

零折射率超材料加载WGM介质环的传输特性

DOI: 10.3969/j.issn.0372-2112.2015.01.016, PP. 99-103

Keywords: 零折射率超材料,回音壁模,传输特性

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Abstract:

本文对零折射率超材料中加载WGM介质环的传输特性进行了理论分析.基于二维场问题,通过理论计算植入零折射率超材料中的介质环所产生的WGM的谐振频率,得出发生全反射的条件,并分析了特定模式下的传输特性.同时,讨论了磁导率μx→0的超材料中WGM对传输系数的影响,得到全透射的效果.通过用COMSOL对理论模型进行仿真,验证了其正确性.本文的结论在电磁传感器、聚能及其隐身等方面有着重要的应用价值.

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