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Dependence of Surface Plasmons on Unit Structure Edge Sharp Features

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Abstract

The relation between the enhanced optical transmission and the unit structural features is studied by changing the unit structural features. 3D finite-difference time-domain method is employed to study the enhanced optical transmission of periodic subwavelength circular-sharps shaped hole arrays in metallic films which are deposited on a quartz substrate. The influences of the unit structural features on the enhanced optical transmission are investigated. It is found that the enhanced optical transmission strongly depends on the unit structural edge sharp features: the sharp acuity, numbers, and distributions. The sharp acuity and numbers influence the enhanced optical transmission via localized surface plasmon resonance mode. The sharp distributions affect the enhanced optical transmission equaling to the effect of polarization properties. The results show that the surface plasmons strongly depend on unit structure edge sharp features. Changing the unit structural edge sharp features, the properties of the enhanced optical transmission can be tailored. This paper provides theoretical support for building the various functions of new plasmonic devices.

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Acknowledgments

This work was supported by the National Natural Science Foundation of China (grant no. 11174119) and the Hunan Provincial Innovation Foundation for Postgraduate (grant no. CX2015B403).

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Authors and Affiliations

  1. School of Electrical Engineering, University of South China, Hengyang, 421001, People’s Republic of China

    Jiabing Sheng, Zhi Yuan, Zhiyong Chen, Weihua Zhu, Wei Guo, Hongyu He & Xinlin Wang

  2. School of Mechanical Engineering, University of South China, Hengyang, 421001, People’s Republic of China

    Xinlin Wang

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  1. Jiabing Sheng
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  2. Zhi Yuan
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  3. Zhiyong Chen
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  4. Weihua Zhu
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  5. Wei Guo
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  6. Hongyu He
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  7. Xinlin Wang
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Correspondence to Zhiyong Chen or Xinlin Wang.

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Sheng, J., Yuan, Z., Chen, Z. et al. Dependence of Surface Plasmons on Unit Structure Edge Sharp Features. Plasmonics 12, 795–801 (2017). https://doi.org/10.1007/s11468-016-0326-y

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