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<p>In this paper, a 1550&#xa0;nm subwavelength triangular prism silver nanowire SPPs hybrid waveguide structure with dual coupling modes was proposed. By introducing two mode coupling regions, the waveguide has achieved efficient and strong mode coupling, which endows the hybrid waveguide with the characteristics of a small effective mode area, a long transmission length and good robustness. The effective mode area of the proposed waveguide is less than 0.002, and the transmission length reaches over 300&#xa0;μm, which has great application value in the design of small optoelectronic devices.</p>

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Dual coupled subwavelength triangular prism silver nanowire SPPs hybrid waveguide

  • 期刊论文

  • 发表日期：

    2025年7月8日

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  • Yindi Wang,
  • Yu Yun,
  • Jing Zhang,
  • Ling Sun,
  • Zhe Wu,
  • Ruiqi Wang

摘要

In this paper, a 1550 nm subwavelength triangular prism silver nanowire SPPs hybrid waveguide structure with dual coupling modes was proposed. By introducing two mode coupling regions, the waveguide has achieved efficient and strong mode coupling, which endows the hybrid waveguide with the characteristics of a small effective mode area, a long transmission length and good robustness. The effective mode area of the proposed waveguide is less than 0.002, and the transmission length reaches over 300 μm, which has great application value in the design of small optoelectronic devices.