, Volume 6, Issue 4, pp 613–618

A Sub-wavelength Electro-optic Switch Based on Plasmonic T-Shaped Waveguide


DOI: 10.1007/s11468-011-9242-3

Cite this article as:
Mei, X., Huang, X.G. & Jin, T. Plasmonics (2011) 6: 613. doi:10.1007/s11468-011-9242-3


A sub-wavelength electro-optic switch based on plasmonic T-shaped waveguide has been proposed and numerically investigated. The finite-difference time-domain simulation results reveal that the switch based on T-shaped waveguide with two U-shaped grooves can realize the function of switching single wavelength from one port to the other by an external voltage. The U-shaped structure is composed of two teeth filled with highly nonlinear organic EO material and one groove filled with 6H-SiC connecting the two teeth. The switch wavelength can be chosen by adjusting both lengths of the left and right teeth, and the switch voltage is 3.35 V for the wavelength of λ = 730 nm with the insertion loss around −2.6 dB and the extinction ratio around −20 dB at port 2.


Switch Plasmonic waveguides Integrated optics devices Electro-optic effect 

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  1. 1.Key Laboratory of Photonic Information Technology of Guangdong Higher Education InstitutesSouth China Normal UniversityGuangzhouChina
  2. 2.Division of Microelectronics, School of Electrical and Electronic EngineeringNanyang Technological UniversitySingaporeSingapore

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