微纳异质超构材料中Fano共振及等离激元诱导透明的调制与机理研究

Due to the specific physical properties of metamaterials, it realizes a large number of novel physical phenomena and characteristics which do not exist in nature. Metamaterials have great potential application prospects in the industries which relate to the development of the national economy, such as industry, agricultural, medical, health, communication, national defense and other fields.. This project demonstrates heterostructure metamaterial structures based on micro/nanomaterials and its Fano resonance, plasmon induced transparency (PIT) phenomena will be studied theoretically and experimentally. Based on the high-efficiency numerical simulation technology and the experimental methods, we will study the modulation of structural parameters on the Fano resonance and PIT phenomena, analyze the formation mechanism and transformation of Fano resonance and PITphenomenon, and explore the formation and evolution mechanisms of the Fano resonance and PIT. This project mainly study the in finite length nanowires (nanotubes) and their composite structures, the split rings composite structures and the new metal / dielectric or metal / metal composite heterostructures.. Through the studies in the Project, it is helpful to understand the physical mechanism of micro-nano Fano resonance and PIT phenomena in the heterostructure metamaterials. It is also beneficial to the design of surface plasmon devices based on the Fano effect and the principle of PIT, such as biochemical sensors, optical switch, filter and so on. It provides the theoretical guidance for the design of micro- nano photonic devices and photonic integrated devices.

超构材料由于其具有常规材料不具备的特异物理性质，实现了大量自然界中不存在的物理现象和新特性。它在与国民经济发展有关的各行业，如工业、农业、医疗、通信、国防等诸多领域存在巨大的潜在应用前景。本项目对微纳异质超构材料结构中出现的Fano共振和等离激元诱导透明现象开展理论及实验研究，利用高效数值仿真手段和实验方法研究结构参数对Fano共振和等离激元诱导透明特性的调制作用，分析Fano共振及等离激元诱导透明现象的形成和变化机制，发现其内在的物理机制。重点研究：有限长度纳米线（管）阵列及组合结构、多个分裂环的组合结构以及金属/介质或金属/金属等各种组合结构。通过本项目的研究有助于深入理解微纳异质超材料结构的Fano共振和PIT特性的物理机制，有助于设计基于Fano效应和PIT原理的表面等离激元器件，例如生化传感器、光开关、滤波器等，还可为新型微纳光子器件和光子集成器件的设计提供理论指导。

超构材料由于其具有常规材料不具备的特异物理性质，实现了大量自然界中不存在的物理现象和新特性。它在与国民经济发展有关的各行业，如工业、农业、医疗、通信、国防等诸多领域存在巨大的潜在应用前景。本项目对微纳异质超构材料结构中出现的Fano共振和等离激元诱导透明现象开展理论及实验研究，利用高效数值仿真手段和实验方法研究结构参数对Fano共振和等离激元诱导透明特性的调制作用，分析Fano共振及等离激元诱导透明现象的形成和变化机制，发现其内在的物理机制。重点研究：有限长度纳米线（管）阵列及组合结构、多个分裂环的组合结构以及金属/介质或金属/金属等各种组合结构。项目共发表论文15篇，获得湖南省自然科学奖一项。通过本项目的研究有助于深入理解微纳异质超材料结构的Fano共振和PIT特性的物理机制，有助于设计基于Fano效应和PIT原理的表面等离激元器件，例如生化传感器、光开关、滤波器等，还可为新型微纳光子器件和光子集成器件的设计提供理论指导。