Electromagnetic Bloch oscillation in one-dimensional multiple microcavities composed of metamaterials  

作　　者：王同标 刘念华 于天宝 邓新华 徐旭明 廖清华 

机构地区：[1]Department of Physics, Nanchang University [2]Institute for Advanced Study, Nanchang University

出　　处：《Chinese Physics B》2014年第4期246-250,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.11264029,11264030,and 11304144);the Natural Science Foundationof Jiangxi Province,China(Grant No.20114BAB212005);the Natural Science Foundation of Education Department of Jiangxi Province,China(GrantNo.GJJ12139)

摘　　要：We propose a photonic structure stacked sequentially by one-dimensional photonic crystals and cavities. The whole structure is composed of single-negative and double-negative materials. The optical Wannier-Stark ladder （WSL） can be obtained in a low frequency region by modulating the widths of the cavities in order. We simulate the dynamical behavior of the electromagnetic wave passing through the proposed photonic structure. Due to the dispersive characteristics of the metamaterials, a very narrow WSL can be obtained. The long-period electromagnetic Bloch oscillation is demonstrated theoretically to have a period on a microsecond time scale.We propose a photonic structure stacked sequentially by one-dimensional photonic crystals and cavities. The whole structure is composed of single-negative and double-negative materials. The optical Wannier-Stark ladder （WSL） can be obtained in a low frequency region by modulating the widths of the cavities in order. We simulate the dynamical behavior of the electromagnetic wave passing through the proposed photonic structure. Due to the dispersive characteristics of the metamaterials, a very narrow WSL can be obtained. The long-period electromagnetic Bloch oscillation is demonstrated theoretically to have a period on a microsecond time scale.

关 键 词：Bloch oscillation METAMATERIAL 

分 类 号：O441[理学—电磁学]