混合光轴方向卷曲空间电磁特异介质的特性研究

项目名称： 混合光轴方向卷曲空间电磁特异介质的特性研究

项目编号： No.61505114

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 无线电电子学、电信技术

项目作者： 梁子贤

作者单位： 深圳大学

项目金额： 22万元

中文摘要： 特异介质以丰富等效材料色散满足变换光学器件设计对材料的要求。然而，多样化器件功能与简单化材料组成，成为互相束缚因素。本项目立足于运用一种光轴方向可调的各向异性等效材料作为像素元构建特异介质，实现多种等效材料特性，满足一系列面积守恒(Area-Preserving)变换的器件需要。像素元的光轴方向，是其中隐藏的自由度。所需的各向异性可由申请人提出的卷曲空间特异介质(PRL_108_114301_2012)实现。本项目将研究卷曲空间原理构建具有可调光轴方向各向异性像素元的机制，混合具有不同光轴方向的像素元形成以像素阵元为单元的特异介质，研究邻近像素元微结构几何特征与其相互作用的响应特性，混合若干具有不同光轴方向的像素元组成像素阵元的方式及相应等效材料理论，并进行材料特性实验验证，给出变换光学器件设计方案。这将促进特异介质与变换光学理论发展，为新型信息功能器件制备简单化与功能丰富化奠定相应基础。

中文关键词： 超材料；变换光学；卷曲空间原理；等效介质；各向异性

英文摘要： Metamaterials with the rich dispersive parameters can satisfy the transformation optical devices. However, the simplicity of the materials and the functionality of the devices prevent the advance of each other. In this project, only one kind of anisotropic material with tunable optical axis is introduced as a pixel to construct metamaterial units which are with different effective medium and can be used for a series of area-preserving transformation optical devices. The tunable optical axis of the pixel is a hidden freedom. The anisotropy can be supplied by the metamaterial by coiling up space (PRL_108_114301_2012) proposed by applicant. This project will focus on the mechanism of building anisotropic pixel with tunable optical axis by coiling up space, then group the pixels with different optical orientations to form metamaterial and study the adjacent effect of the pixels with microstructure, the method and effective medium of the array with pixels with mixing optical axis, and experimentally demonstrate the effective medium property. Finally, the scheme of transformation optical devices can be obtained. This project can advance the metamaterial and transformation optics, build up the foundations for the simplicity and functionality of the novel information devices.

英文关键词： metamaterial;transformation optics;coiling up space;effective medium;anisotropic