Plasmonics

, Volume 13, Issue 2, pp 511–517 | Cite as

Plasmonic Wavelength Demultiplexer with Mode Conversion Capabilities

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Abstract

An efficient wavelength demultiplexer with its input as a metal-insulator-metal (MIM) waveguide mode and output an out of plane free-space mode is proposed. The proposed demultiplexer design is integrated on a MIM waveguide such that power is evanescently coupled into an array of appropriately designed cavity-groove combination. The demultiplexer design permits control of phase of the dropped wavelength to achieve a desired wavefront. We demonstrate this through generation of circular and plane wavefront. By controlling the evanescently coupled power into the cavity-groove combinations, it is possible to dramatically improve the efficiency of the proposed demultiplexer. Results are simulated using FEM technique.

Keywords

Surface plasmons Wavelength demultiplexer Mode conversion Plasmonic lens Power splitter 

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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  • U. Aparna
    • 1
  • H. S. Mruthyunjaya
    • 1
  • M. Sathish Kumar
    • 1
  1. 1.Department of Electronics and Communication Engineering, Manipal Institute of TechnologyManipal UniversityManipalIndia

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