title: Electromagnetic tunneling in a sandwich structure containing single negative media.
abstract: 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.
authors.affiliation: Pohl Institute of Solid State Physics, Tongji University, Shanghai 200092, China. liyunhui@mail.tongji.edu.cn
authors.forename: Tuanhui
authors.initials: T
authors.lastname: Feng
authors.forename: Yunhui
authors.initials: Y
authors.lastname: Li
authors.forename: Haitao
authors.initials: H
authors.lastname: Jiang
authors.forename: Yong
authors.initials: Y
authors.lastname: Sun
authors.forename: Li
authors.initials: L
authors.lastname: He
authors.forename: Hongqiang
authors.initials: H
authors.lastname: Li
authors.forename: Yewen
authors.initials: Y
authors.lastname: Zhang
authors.forename: Yunlong
authors.initials: Y
authors.lastname: Shi
authors.forename: Hong
authors.initials: H
authors.lastname: Chen