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Ultra compact (1 × 2) Y-shape optical power divider based on novel configuration of cylindrical gold nano rod and shell nanoparticles

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Abstract

In this work, we have studied optical properties of a two-branch (1 × 2) Y-shape optical power divider based on ordered chains of gold nano rod/shell combinations that are embedded in a silica substrate. Appropriate dimensional sizes for proposed structure have been determined and presented based on its plasmon resonance behavior and the peak of localized surface plasmon resonance at telecommunication spectrum (λ ~ 1,550 nm). The transmission loss factors for transverse electric mode distribution and the impact of offset distance on propagation performance and light division quality have been determined, numerically. It is shown that proposed nanostructure is able to transport electromagnetic wave through the rod/shell configurations arrays with transmission loss factor of γ T  = 3 dB/625 nm and the power ratio of 48.9 % for 850 nm of offset distance. Finite-difference time-domain method as a major simulation model is used in our calculations.

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Authors and Affiliations

  1. Young Researchers and Elite Club, Ahar Branch, Islamic Azad University, Ahar, Iran

    A. Ahmadivand

  2. School of Engineering-Emerging Technologies, University of Tabriz, 5166614761, Tabriz, Iran

    S. Golmohammadi

Authors
  1. A. Ahmadivand
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  2. S. Golmohammadi
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Correspondence to S. Golmohammadi.

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Ahmadivand, A., Golmohammadi, S. Ultra compact (1 × 2) Y-shape optical power divider based on novel configuration of cylindrical gold nano rod and shell nanoparticles. Indian J Phys 89, 81–86 (2015). https://doi.org/10.1007/s12648-014-0530-6

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  • DOI: https://doi.org/10.1007/s12648-014-0530-6

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