Transmission Characteristics Analysis Of a Directional Coupler Based on Hybrid SNIMS Plasmonic Waveguide

被引：0
|
作者：
Zhang, Li [1 ]
Li, Xiaopeng [1 ]
Xiong, Qiulin [1 ]
Zhang, Man [1 ]
机构：
[1] Shenzhen Univ, Coll Informat Engn, Shenzhen, Peoples R China
来源：
PROCEEDINGS OF THE 2014 INTERNATIONAL CONFERENCE ON MECHATRONICS, ELECTRONIC, INDUSTRIAL AND CONTROL ENGINEERING | 2014年 / 5卷
关键词：
directional coupler; transmission characteristics; plasmonic waveguide; SPP; COMSOL; POLARITON; FILTERS;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We numerically simulate a directional coupler based on hybrid SNIMS (semiconductor-nanowire-insulator-metal strip) plasmonic waveguide using COMSOL. The distributions of electromagnetic field and longitudinal energy flux density when only fundamental mode propagates in waveguides are analyzed. The dependences of coupling length and maximum transfer power on the distance of two parallel waveguides are discussed. The results show that the longitudinal energy flux density in the waveguides concentrates mainly on the lower edge of Si nanowire, which helps increase the coupling strength. At the same time, the coupling length of the directional coupler can decrease efficiently by reducing the distance of two parallel waveguides. This subwavelength directional coupler can be used for optical integrated circuits.
引用
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页码：312 / 315
页数：4
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