Parity-Time Symmetric Tunnelling

被引：0

作者：

Ra'di, Y. ^{[1
]}

Sounas, D. L. ^{[2
]}

Alu, A. ^{[2
]}

Tretyakov, S. A. ^{[1
]}

机构：

[1] Aalto Univ, Dept Radio Sci & Engn, POB 13000, FI-00076 Aalto, Finland

[2] Univ Texas Austin, Dept Elect & Comp Engn, Austin, TX 78701 USA

来源：

9TH INTERNATIONAL CONGRESS ON ADVANCED ELECTROMAGNETIC MATERIALS IN MICROWAVES AND OPTICS (METAMATERIALS 2015) | 2015年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We show that plane waves can fully "tunnel" through a thin metallic layer perforated with a two-dimensional subwavelength array of tiny holes, assisted by a pair of lossy and active sheets in front and behind the screen. The required conditions for eliminating reflections (no back-scattered power) and shadow (no change in the field strength behind the screen) as well for full tunneling of energy are investigated. It is shown that positioning an active layer behind a highly reflective metallic sheet, one can fully recreate the incident wave behind the shield. Finally we show that a parity-time-symmetric pair of a lossy layer in front and an active layer behind the metallic layer makes both forward and backward scattered powers zero.

引用

页码：265 / 267

页数：3

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