Mathematical Sciences and Centre for Photonic Metamaterials, University of Southampton, Southampton SO17 1BJ, United Kingdom.
Phys Rev Lett. 2013 Oct 4;111(14):147401. doi: 10.1103/PhysRevLett.111.147401. Epub 2013 Sep 30.
We propose a cooperative asymmetry-induced transparency, CAIT, formed by collective excitations in metamaterial arrays of discrete resonators. CAIT can display a sharp transmission resonance even when the constituent resonators individually exhibit broad resonances. We further show how dynamically reconfiguring the metamaterial allows one to actively control the transparency. While reminiscent of electromagnetically induced transparency, which can be described by independent emitters, CAIT relies on a cooperative response resulting from strong radiative couplings between the resonators.
我们提出了一种由离散谐振器的超材料阵列中的集体激发形成的协同非对称诱导透明（CAIT）。即使组成的谐振器各自表现出宽的共振，CAIT 也可以显示出尖锐的传输共振。我们进一步展示了如何通过动态重新配置超材料来主动控制透明度。虽然这让人想起可以用独立发射器来描述的电磁感应透明，但 CAIT 依赖于谐振器之间强辐射耦合产生的协同响应。
