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

作者：Mei, Xian; Huang, Xu Guang^*; Jin, Tao

来源：Plasmonics, 2011, 6(4): 613-618.

DOI：10.1007/s11468-011-9242-3

• Switch
• Plasmonic waveguides
• Integrated optics devices
• Electro-optic effect

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 lambda = 730 nm with the insertion loss around -2.6 dB and the extinction ratio around -20 dB at port 2.

• 出版日期2011-12
• 单位华南师范大学; 南阳理工学院