Unidirectional and bidirectional coupling of surface plasmons based on nonperiodic nano slit array

Authors

  • Aparna Udupi Electronics and Communication Engineering Department, Manipal Institute of Technology, Manipal University
  • Mruthyunjaya Somasekhara Handigod Electronics and Communication Engineering Department, Manipal Institute of Technology, Manipal University
  • Sathish Madhava Kumar Electronics and Communication Engineering Department, Manipal Institute of Technology, Manipal University http://orcid.org/0000-0002-9706-4195

DOI:

https://doi.org/10.4302/plp.v10i1.745

Abstract

A 2D structure made up of nano slits to couple free space mode of any given wave front to a propagating Surface Plasmon Polariton (SPP) mode of Metal Insulator Metal (MIM) waveguide is proposed. The structure can be designed to act as either a unidirectional coupler or a bidirectional coupler. Designed structures are simulated using FEM technique and results for circular and plane wave fronts are demonstrated. From the results obtained, it is observed that there is an optimum aperture size for coupling maximum power into the MIM waveguide for the case of circular wave front.

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Published

2018-03-31

How to Cite

[1]
A. Udupi, M. S. Handigod, and S. M. Kumar, “Unidirectional and bidirectional coupling of surface plasmons based on nonperiodic nano slit array”, Photonics Lett. Pol., vol. 10, no. 1, pp. 17–19, Mar. 2018.

Issue

Vol. 10 No. 1 (2018)

Section

Articles

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