项目名称: 含光栅低维异质结构的电磁波传输特性
项目编号: No.11304078
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 数理科学和化学
项目作者: 康秀宝
作者单位: 河南工程学院
项目金额: 26万元
中文摘要: 本课题从对各子结构的本征模式的分析出发,研究利用由光栅与多层膜等构造的含光栅低维异质结构来对电磁波传输进行调控。在前期对一维光栅和一维光子晶体组成的低维异质结构以及亚波长金属介质光栅等结构的线性、非线性特性研究的基础上,我们将对含光栅低维异质结构中高品质Fano 型共振和类EIT 效应等多通道耦合谐振现象的实现及其在光信号控制中的应用进行研究。从对光栅与其它结构的本征模式的匹配出发来研究含光栅异质结构的电磁波传输特性,将使对相关结构的研究从传统的数值模拟转化为系统的理论分析,为对该类结构的研究提供了新的思路。另外,这类多通道耦合谐振中的电磁波传输和相应的场局域与通常的Lorentzian 型谐振中的相应特征完全不同,对于相关特性及其应用的研究尚未引起人们足够的重视,我们将深入研究。
中文关键词: 光学Tamm态;导模谐振;Fano谐振;表面模谐振;
英文摘要: By studing the coupling of the eigenmodes of the one dimentional diffraction gratings and multi-layer structures, we will design low dimentional heterostructures containing diffraction gratings to make control of electromagnetic wave propagation. We have studied linear and nonlinear electricmagnetic wave propagation of: 1) heterostructures made of one-dimensional-grating and one-dimensional photonic crystals; 2) subwavelength metal-dielectric gratings. Building on this basis, we will study the realization and applications of high quality Fano and optical EIT-like coupled-resonances through the low dimensional heterostructures. By employing the eigenmode analysis method, the study of electromagnetic wave propagation in heterostructures containing diffraction gratings turns from numerical calculation to theoretical analysis, which leads to deeper insights to the properties of corresponding heterostructures. Furthermore, the transmission and field localization profiles of the coupled-resoances realized by the low dimensional heterostructures are definitely different from that of Lorentzian resonances. We will also give an in-depth study to such features and their applications.
英文关键词: otical Tamm state;guided-mode resonance;Fano resonance;guided Bloch mode resonance;