Plasmonics

, Volume 8, Issue 2, pp 1123–1128

Easy-to-Design Nano-Coupler Between Metal–Insulator–Metal Plasmonic and Dielectric Slab Waveguides

  • Hossein Hodaei
  • Mohsen Rezaei
  • Mehdi Miri
  • Meisam Bahadori
  • Ali Eshaghian
  • Khashayar Mehrany
Article

DOI: 10.1007/s11468-013-9519-9

Cite this article as:
Hodaei, H., Rezaei, M., Miri, M. et al. Plasmonics (2013) 8: 1123. doi:10.1007/s11468-013-9519-9

Abstract

An easy-to-design single-stub nano-coupler is proposed to increase the direct coupling efficiency between metal–insulator–metal (MIM) plasmonic and high-index dielectric waveguides. The modal reflection and transmission from the junction are exploited to provide a circuit description for the structure. The return loss of direct coupling is then minimized by loading the MIM waveguide with a single stub. Numerical examples are given, and the accuracy of the model is examined via finite-difference time-domain method.

Keywords

Metal–insulator–metal waveguides Waveguide junction Equivalent circuit Power coupling 

Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Hossein Hodaei
    • 1
  • Mohsen Rezaei
    • 1
  • Mehdi Miri
    • 1
  • Meisam Bahadori
    • 1
  • Ali Eshaghian
    • 1
  • Khashayar Mehrany
    • 1
  1. 1.Department of Electrical EngineeringSharif University of TechnologyTehranIran

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