Tunable plasmonic filter and variable optical attenuator based on ring metal–insulator–metal waveguide

The Journal of Engineering

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[1] Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510006, People's Republic of China;Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510006, People's Republic of China;School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, People's Republic of China;

关键词: circuit tuning;    electro-optical effects;    electro-optical filters;    finite difference time-domain analysis;    MIM devices;    optical attenuators;    optical waveguides;    plasmonics;    refractive index;    tunable nanoscale plasmonic filter;    variable optical attenuator structure;    rectangular ring metal-insulator-metal waveguide cavity;    electrooptic material;    EO;    finite-difference time-domain technique;    refractive index;   

DOI  :  10.1049/joe.2013.0029

来源: publisher

【 摘 要 】

A tunable nanoscale plasmonic filter and variable optical attenuator structure based on a rectangular ring metal–insulator–metal waveguide cavity containing electro-optic (EO) material is proposed and numerically demonstrated by using the finite-difference time-domain technique. The simulation results show that the output of the device can be electrically controlled by tuning the refractive index of the EO material and the structure can be used as tunable filter and variable optical attenuator alternatively under very low voltage.

【 授权许可】

CC BY