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On the Propagation of Multiple Surface Plasmon-Polariton Waves by a Triangle Helix Thin Film in Sarid Configuration

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Abstract

Increasing the propagation length of surface plasmon polariton waves has always been a problem in the field of plasmonics. Here, we reported that the surface plasmon polariton waves are multiplied by considering a central metal defect in a dielectric triangle helix thin film using Sarid configuration. The dependence relative phase speed and propagation length of the multiple surface plasmon polariton waves on different structural parameters are investigated. The results showed that the high propagation length up to 236 μm is made available by selecting suitable structural parameters. The localization of surface plasmon polariton waves is proven by the depiction of the time-averaged Poynting vector and local absorption as a function of depth of the structure.

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Acknowledgments

The authors would like to express their deep gratitude to the University of Qom for supporting this work.

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Authors and Affiliations

  1. Department of Physics, University of Qom, Qom, Iran

    S. H. Hosseininezhad & F. Babaei

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  1. S. H. Hosseininezhad
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  2. F. Babaei
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Correspondence to F. Babaei.

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Hosseininezhad, S.H., Babaei, F. On the Propagation of Multiple Surface Plasmon-Polariton Waves by a Triangle Helix Thin Film in Sarid Configuration. Plasmonics 14, 1843–1854 (2019). https://doi.org/10.1007/s11468-019-00972-3

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