Nonreciprocal Magneto-Plasmonic Waveguide with Compact Metal-Sandwiched Structure  

作　　者：JIN Yi-Chang XU Chao QIU Hui-Ye XIANG Le-Qiang YANG Jian-Yi JIANG Xiao-Qing 金亿昌;徐超;邱晖晔;项乐强;杨建义;江晓清(Department of Information Science and Electronics Engineering,Zhejiang University,Hangzhou 310027)

机构地区：[1]Department of Information Science and Electronics Engineering,Zhejiang University,Hangzhou 310027

出　　处：《Chinese Physics Letters》2013年第9期65-68,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China(No 61177055);the National Basic Research Program of China(No 2013CB632105);the Fujian-Provincial Education Department Foundation of China(JK2013053).

摘　　要：A magneto-optical(MO)metal-sandwiched multilayered structure composed of metal,MO medium and dielectric buffer layers is presented and investigated by finite-element-method-based-mode solver and perturbation theory.The results show that this structure exhibits large nonreciprocal phase shift,strong mode confinement in the narrow buffer layers as well as very low propagation loss.The propagation length with 1dB loss is much longer than the required length of𝜌π/2 nonreciprocal phase shifts in this structure.The modal area is smaller than half of the conventional MO waveguides.This phenomenon can be used to achieve a compact plasmonic isolator based on the Mach–Zehnder interferometer.

关 键 词：INTERFEROMETER WAVEGUIDE reciprocal 

分 类 号：TN2[电子电信—物理电子学]