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Ultra-Subwavelength and Low Loss in V-Shaped Hybrid Plasmonic Waveguide

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Abstract

A new kind of hybrid plasmonic waveguide is proposed, and its propagation properties are investigated using the finite-element method. This waveguide consists of a V-shaped silver nanowire embedded in a low-index dielectric cladding above a semiconductor substrate, which can confine light in the subwavelength region with a long propagation length. The field distribution, the mode effective index, the propagation length, and the normalized mode area of the hybrid mode supported by the waveguide are investigated at the wavelength of 1550 nm, which are dependent on the geometric parameters.

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Acknowledgments

The work is financially supported by National Natural Foundation of China (Grant No. 61575117), the Fundamental Research Funds for the Central Universities of Ministry of Education of China (Grant No. GK201601008), and the Fostering Fund of Xian university of science and technology (Grant No. 2010045).

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Authors and Affiliations

  1. School of Physics and Information Technology, Shaanxi Normal University, Xi’an, 710062, China

    Yongyuan Zhang & Zhongyue Zhang

  2. School of Science, Xi’an University of Science and Technology, Xi’an, 710054, China

    Yongyuan Zhang

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  1. Yongyuan Zhang
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  2. Zhongyue Zhang
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Correspondence to Zhongyue Zhang.

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Zhang, Y., Zhang, Z. Ultra-Subwavelength and Low Loss in V-Shaped Hybrid Plasmonic Waveguide. Plasmonics 12, 59–63 (2017). https://doi.org/10.1007/s11468-016-0228-z

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  • DOI: https://doi.org/10.1007/s11468-016-0228-z

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