A Novel Adjustable Plasmonic Filter Realization by Split Mode Ring Resonators

Mohsen Janipour, Mohammad Azim Karami, Rahman Sofiani, Farrokh Hodjat Kashani

Department of Electrical Engineering, Iran University of Science and Technology, Tehran, Iran..

DOI: 10.4236/jemaa.2013.512063                

Abstract

A novel nanoscale plasmonic filter consisting of two coupled metal-insulator-metal (MIM) waveguides is introduced. The new structure functionality is verified by numerical simulations in different configurations of the filter. The impedance variation characteristic named as split mode ring resonancy is achieved by partially narrowing or expanding the waveguide diameter. The main parameters of the filter are evaluated by using the parameters of an implemented type of ring resonator. Moreover, modal analysis for Surface Plasmon Polariton (SPP) propagation is performed while changing the main spatial parameters of the device.

Keywords

Plasmonic Filter; Ring Resonator; MIM Waveguide

Conflicts of Interest

The authors declare no conflicts of interest.

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