本项目围绕特异材料和各种人工电磁微结构，研究电磁波和光脉冲在其中传播时发生的线性或非线性法诺共振行为。项目主要围绕以下几个方面展开：一方面，我们从法诺共振的基本物理出发，设计具有法诺共振响应的特异材料，并研究几何，损耗等参量对法诺谱线的调节；第二方面，在设计中引入非线性材料和元件，探索非线性法诺共振的特性、它和一般非线性共振的区别，以及不同法诺谱线对非线性特性的影响；最后，我们以前期工作为基础，通过微波实验来研究电磁波脉冲在线性和非线性法诺共振响应结构中的输运行为，探索法诺共振的时域特性，如响应快慢等。对特异材料中非线性法诺共振的实验研究，不但能够深入了解法诺共振的物理意义，加深人们对基本物理的理解，而且对特异材料的应用和有关非线性器件的研制具有指导意义。

This project examines the linear and nonlinear Fano resonance .when electromagnetic microwave and light pluse propagate in metamaterials and other artificial electromagnetic micro-structure. It mainly focuses on the following aspects: on the one hand, we would design a metamaterial structure with the Fano resonance response starting from the basic physics of Fano resonance, and further study the influence of geometry and losses on Fano resonance; the second area, by applying the nonlinear materials and components into the design, we could explore the nonlinear properties of Fano resonances, the difference between nonlinear Fano and normal resonance, and the effects of different Fano lines on nonlinear properties; Finally, based on our preliminary work, we can investigate the transport behavior of the electromagnetic pluse through matematerials with linear and/or nonlinear Fano resonance. Through microwave experiments, we can also explore Fano resonance in time domain. Researches of linear and nonlinear Fano resonance in metamaterials, not only present the insight into the physical processes of the Fano resonance and deepen people's understanding of basic physics, but also are instructive for the application of metamaterials and the development of the related linear/nonlinare devices.