基于聚合物光栅耦合器的表面等离子体共振电光光调制器的仿真研究。

Simulation study of surface-plasmon-resonance electro-optic light modulator based on a polymer grating coupler.

机构信息

Department of Electro-Optics Engineering, National Formosa University, 64 Wenhua Road, Huwei,Yunlin, Taiwan.

出版信息

Opt Lett. 2009 Dec 15;34(24):3812-4. doi: 10.1364/OL.34.003812.

DOI:10.1364/OL.34.003812

PMID:20016622

Abstract

An electro-optic light modulator design based on a grating-coupled surface-plasmon-resonance structure is numerically investigated using finite-difference time-domain simulation. The thickness effect of a dielectric layer acting as a waveguide on metal structures is investigated. The results show that the new structure has much higher modulation index than the conventional one and can implement an electro-optic modulator with low operating voltage.

摘要

基于光栅耦合表面等离子体共振结构的电光调制器设计采用有限时域差分法进行了数值研究。研究了作为波导的介电层厚度对金属结构的影响。结果表明，新结构的调制指数比传统结构高得多，并且可以实现低工作电压的电光调制器。