基于各向异性材料光子晶体的传输特性分析及器件设计

项目名称： 基于各向异性材料光子晶体的传输特性分析及器件设计

项目编号： No.61307048

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 无线电电子学、电信技术

项目作者： 林密

作者单位： 深圳大学

项目金额： 20万元

中文摘要： 近年来，光子晶体的研究引起了人们极大的关注，但大家关注的重点主要集中在各向同性材料光子晶体结构，由于各向异性材料的介电常数是张量形式的，对电磁波的约束作用有别于普通各向同性材料。因此，当光子晶体是由各向异性材料构成时，会发生非常有趣的现象，同时这些有趣的现象为我们设计更为复杂化、更具有针对性的光子晶体元件提供了非常重要的思路。本项目将重点放在基于各向异性磁光材料和碲介质的一维和二维光子晶体上，主要研究内容包括：一维磁光光子晶体的反常色散现象；在一维磁光光子晶体中引入左手材料，以获得对角度具有宽容忍度的光子晶体隔离器；二维碲光子晶体的完全禁带，以及由此设计的光子晶体偏振分束器；在二维碲光子晶体中引入磁光材料缺陷，设计与偏振无关的光子晶体环形器。上述内容的研究，弥补了理论上的不足，也为光子晶体滤波、隔离器等关键器件的制作提供了重要的依据。

中文关键词： 光子晶体；各向异性材料；偏振器件；环行器；功率分配器

英文摘要： In recent years, the research of photonic crystals had attracted more and more attention. People usually focus on the study of photonic crystals based on isotropic materials but ignore anisotropic materials. In fact, due to the tensor expression of permittivity of anisotropic materials, the properties of electromagnetic waves in anisotropic materials are quite different from that in isotropic materials. If the photonic crystals made by anisotropic materials, a lot of special and helpful results can be found, which can be very useful for us to design some complex and targeted photonic crystal devices. In this project, we pay our attention to one-dimensional and two-dimensional photonic crystals based on anisotropic materials (including magneto-optical materials and Tellurium). The major studies of this project are as follows: the anomalous dispersions of one-dimensional magnetic photonic crystals are investigated; the photonic crystal isolators with good performance on large incident angle are studied by introducing left-handed materials into magnetic photonic crystals; the complete bandgaps based on two dimensional Tellurium photonic crystals are investigated, and photonic crystal polarization beam splitters are studied; the photonic crystal circulators based on two dimensional Tellurium photonic crystals are st

英文关键词： photonic crystal；anisotropic material；polarization device；circulator；power splitter