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

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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.

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Authors and Affiliations

  1. Department of Electrical Engineering, Sharif University of Technology, 11365-9363, Tehran, Iran

    Hossein Hodaei, Mohsen Rezaei, Mehdi Miri, Meisam Bahadori, Ali Eshaghian & Khashayar Mehrany

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  1. Hossein Hodaei
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  2. Mohsen Rezaei
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  3. Mehdi Miri
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  4. Meisam Bahadori
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  5. Ali Eshaghian
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  6. Khashayar Mehrany
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Correspondence to Hossein Hodaei.

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Hodaei, H., Rezaei, M., Miri, M. et al. Easy-to-Design Nano-Coupler Between Metal–Insulator–Metal Plasmonic and Dielectric Slab Waveguides. Plasmonics 8, 1123–1128 (2013). https://doi.org/10.1007/s11468-013-9519-9

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  • DOI: https://doi.org/10.1007/s11468-013-9519-9

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