Electromagnetic tunneling in a sandwich structure containing single negative media.
Electromagnetic tunneling in a sandwich structure containing single negative media.
复制标题
DOI：
10.1103/physreve.79.026601
复制
发表时间：
2009-02
期刊：
影响因子：
--
通讯作者：
T. Feng;Yunhui Li;Haitao Jiang;Yong Sun;Li He;Hong-qiang Li;Yewen Zhang;Yun-long Shi;Hong Chen
中科院分区：
文献类型：
--
作者：
T. Feng;Yunhui Li;Haitao Jiang;Yong Sun;Li He;Hong-qiang Li;Yewen Zhang;Yun-long Shi;Hong Chen
本文采用传递矩阵法和微波实验研究了负mu介质（MNG）、空气和负epsilon介质（ENG）夹层结构中的电磁隧穿现象。这两个结果都表明，通过适当选择参数，电磁波可以有效地穿过数百倍于器件长度的长距离隧道。与ENG-MNG板不同的是，隧道模式的电场和磁场分别在mg -空气和eng -空气的界面处分离和局部化。因此，这种结构在无线信息和能量传输方面的潜在应用可能是重要的，因为它具有高效率、安全性和健康性。
In this paper, the electromagnetic (EM) tunneling phenomenon in a sandwich structure consisting of an mu-negative (MNG) medium, air, and an epsilon-negative (ENG) medium is investigated by means of the transfer-matrix method and microwave experiments. Both results demonstrate that by properly choosing parameters, EM waves can efficiently tunnel through a long distance over several hundreds times the length of the device. Unlike in the ENG-MNG slabs, the electric and the magnetic field of the tunneling mode is interestingly separated and localized at the interface of MNG-air and ENG-air, respectively. Therefore, this structure may be important for potential applications in wireless information and energy transmission, for its high efficiency, security, and health.