基于耦合金属/电介质/金属纳米结构高激发效率电致表面等离子体激元源器件研究

项目名称： 基于耦合金属/电介质/金属纳米结构高激发效率电致表面等离子体激元源器件研究

项目编号： No.61465004

项目类型： 地区科学基金项目

立项/批准年度： 2015

项目学科： 无线电电子学、电信技术

项目作者： 肖功利

作者单位： 桂林电子科技大学

项目金额： 47万元

中文摘要： 表面等离子激元(SPP)在近场增强、亚波长控制和操纵光等方面有特殊的物理性质，在集成光路和生化传感领域中具有重要应用价值；SPP源是其中的核心器件。最近，利用金属/电介质/金属（MIM）纳米结构电致发光耦合激发SPP源的研究备受关注，但因较低的激发效率严重限制其实际应用。本项目拟通过在MIM 结构中的中间电介质层中引入作为能量耦合器的金属层构成新型的耦合MIM 结构来解决SPP 激发效率低的问题。主要内容包括：①研究耦合MIM 结构高效率电致发光、光耦合激发SPP、SPP能量积聚与耦合、低损耗SPP 传输的物理机制，为设计高激发效率电致SPP 源器件提供理论指导；②研究耦合MIM结构中材料与几何结构等参数对提高SPP激发效率的影响，对其参数进行优化；③从耦合MIM 结构在纳米尺度下的电-光-SPP调控入手，在器件设计中综合考虑电注入、光转换和SPP取出三种特性，实现高效率SPP激发与探测。

中文关键词： 表面等离子体激元；耦合金属/电介质/金属纳米结构；电致发光；光电功能器件

英文摘要： Surface plasmon polaritons (SPP) with several special physical properties in the near field enhancement、subwavelength control and manipulate light and so on aspects, have important applications in integrated optics and biochemical sensing field; SPP source is one of the core device. Recently, the study of using the nanostructure of metal/dielectric/metal (MIM) electroluminescent coupled to excite SPP source has been focused on, but its lower excitation efficiency severely limits practical application. The metal layer is introduced in the intermediate dielectric layer of MIM structure as energy coupler forming new-style coupled MIM structure to solve the problem of low efficiency of SPP excitation in this project. The main contents include: ①Studying the physical mechanism of efficient electroluminescence, light coupled to excite SPP、SPP energy accumulation and coupled、low loss SPP transmission in the coupled MIM structure, which will provide theoretical guidance to design an electroluminescent SPP source device with high excitation efficiency; ②Studying the effects of materials and geometry parameters of coupled MIM structure on improving SPP excitation efficiency, optimizing its parameters; ③From the regulation of electricity-light-SPP in coupled MIM structure under nanometer scale, three kinds properties of electrical implantation, optical conversion and SPP extraction in the structural design of the device is considered as a whole, to achieve efficient SPP excitation and detection.

英文关键词： Surface plasmon polaritons;coupled metal/dielectric/metal nanostructures;electroluminescence;photoelectric functional device