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Plasmonics

pp 1–7 | Cite as

Numerical Study of the MSCB Nanoantenna as Ultra-broadband Absorber

  • Lu Zhu
  • Yue Jin
  • Kangkang Li
  • Huan Liu
  • Yuanyuan LiuEmail author
Article
  • 66 Downloads

Abstract

In this paper, we propose an ultra-broadband multi-slot cross bowtie (MSCB) nanoantenna for light absorption, whose elements compose of dual rectangles and cross bowtie and rectangular slots. The optical characteristics are analysis numerically by the three-dimensional finite-difference time-domain (FDTD) method. The results show that the average absorptivity of the nanostructure is over 90% in 400–1800-nm waveband, which covered the visible and near-infrared region. We attribute the better absorption property of the nanoantenna to the combining of plasmon coupling effects between slots, high-order modes, and surface plasmon resonance. Our work provides a promising method for the future developments of more advanced absorber for energy harvesting, thermoelectrics, and imaging.

Keywords

Absorption Localized surface plasmon Ultra-broadband Nanostructures 

Notes

Funding Information

This research was funded by the National Nature Science Foundation of China (61967007,61963016), and the Outstanding Youth Talent Project of Jiangxi Provincial (20171BCB23062), and the Jiangxi Provincial Department of Education Science and Technology Research Key Project (GJJ170360).

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Lu Zhu
    • 1
  • Yue Jin
    • 1
  • Kangkang Li
    • 1
  • Huan Liu
    • 1
  • Yuanyuan Liu
    • 1
    Email author
  1. 1.School of Information EngineeringEast China Jiaotong UniversityNanchangChina

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