基于弯曲超材料的传输响应切换与拓展。

Dept. of Physics, Hanyang University, Seoul, 04763, South Korea.

Dept. of Information Display, Sunmoon University, Asan, 336-708, South Korea.

Sci Rep. 2017 Jun 15;7(1):3559. doi: 10.1038/s41598-017-03824-4.

The electromagnetically-induced transparency (EIT)-like effects in planar and non-planar metamaterials (MMs) were investigated for microwave (GHz) frequencies. The specific MMs used in this study consisted of a cut-wire resonator and a ring resonator, where were placed on the top and the bottom layers, respectively. A transmission window was produced, due to the interference between bright- and bright-mode coupling. Using the numerical and the experimental results, we demonstrate that the bending of MM leads to enhanced transmission and bandwidth, as well as an additional EIT-like peak. This provides an effective way of realizing the tunable devices, including the switching sensors.

本文研究了平面和非平面超材料（MMs）中的电磁感应透明（EIT）效应在微波（GHz）频率下的表现。本研究中使用的特定 MMs 由一个切线谐振器和一个环形谐振器组成，分别位于顶层和底层。由于亮-亮模式耦合的干涉，产生了一个传输窗口。通过数值和实验结果，我们证明了 MM 的弯曲导致了增强的传输和带宽，以及一个额外的 EIT 样峰。这为实现可调谐器件，包括开关传感器，提供了一种有效的方法。