, Volume 6, Issue 2, pp 337–343

Impedance Matching Induce High Transmission and Flat Response Band-Pass Plasmonic Waveguides



We consider a model utilizing the concept of impedance matching, which can be applied to design the coupled cascaded plasmonic cavity waveguide with desired properties. We use a transfer matrix method to obtain its transmission and dispersion diagrams. Base on this method, we demonstrate that a band-pass metal–dielectric–metal plasmonic filter with quasi-flat group velocity and tunable bandwidth can be achieved.


Surface plasmons Impedance matching Wavelength filtering 

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  1. 1.Nonlinear Physics Centre and Centre for Ultra-high-bandwidth Devices for Optical Systems (CUDOS), Research School for Physics and EngineeringAustralian National UniversityCanberraAustralia
  2. 2.Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and EngineeringSouth China Normal UniversityGuangzhouPeople’s Republic of China

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