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

DOI

10.2991/meic-14.2014.70How to use a DOI?

Keywords

directional coupler; transmission characteristics; plasmonic waveguide; SPP; COMSOL

Abstract

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.

Copyright

© 2014, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Li Zhang
AU  - Qiulin Xiong
AU  - Xiaopeng Li
AU  - Man Zhang
PY  - 2014/11
DA  - 2014/11
TI  - Transmission Characteristics Analysis Of a Directional Coupler Based on Hybrid SNIMS Plasmonic Waveguide
BT  - Proceedings of the 2014 International Conference on Mechatronics, Electronic, Industrial and Control Engineering
PB  - Atlantis Press
SP  - 312
EP  - 315
SN  - 2352-5401
UR  - https://doi.org/10.2991/meic-14.2014.70
DO  - 10.2991/meic-14.2014.70
ID  - Zhang2014/11
ER  -