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Resonance modes of plasmonic nanorod metamaterials and their applications
Author(s): Junxi Zhang; Zhijia Hu; Kang Xie; Yongqin Wei; Haoyu Wang; Fei Wang; Taiming Liang; Sonia Ghafoor; Pei Wang; Guangtao Fei; Lide Zhang; Lin Zhang
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Paper Abstract

Plasmonic nanorod metamaterials exhibit transversal and longitudinal resonance modes. It is found that the resonance intensity of the transversal modes (T-Modes) excited by the p- polarized wave is obviously larger than the intensity for the s- polarized wave at the wavelength of the transversal resonance, and the resonance intensity of the longitudinal modes (L-Modes) excited by the s- polarized wave is clearly larger than the intensity for the p- polarized wave at the longitudinal resonance wavelength, indicating a distinct polarization characteristics, which results from excitation of the different resonance modes of surface plasmons at different wavelengths. Moreover, the polarization behavior in near field regions for the different resonance modes has been demonstrated by the electric field distributions of the plasmonic nanorods based on FDTD simulation. In addition, the working wavelength of the polarizer can be tuned by the diameter and length of the silver nanorods in the visible spectral range, higher extinction ratios and lower insertion losses can be achieved based on the different resonance modes associated with the different polarizations. The polarizers will be a promising candidate for its potential applications in integration of nanophotonic devices.

Paper Details

Date Published: 18 December 2019
PDF: 7 pages
Proc. SPIE 11336, AOPC 2019: Nanophotonics, 113360P (18 December 2019); doi: 10.1117/12.2547790
Show Author Affiliations
Junxi Zhang, Hefei Univ. of Technology (China)
Aston Univ. (United Kingdom)
Zhijia Hu, Hefei Univ. of Technology (China)
Aston Univ. (United Kingdom)
Southwest Univ. of Science and Technology (China)
Kang Xie, Hefei Univ. of Technology (China)
Yongqin Wei, Hefei Univ. of Technology (China)
Haoyu Wang, Hefei Univ. of Technology (China)
Fei Wang, Hefei Univ. of Technology (China)
Taiming Liang, Hefei Univ. of Technology (China)
Sonia Ghafoor, Univ. of Science and Technology of China (China)
Pei Wang, Univ. of Science and Technology of China (China)
Guangtao Fei, Institute of Solid State Physics (China)
Lide Zhang, Institute of Solid State Physics (China)
Lin Zhang, Aston Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 11336:
AOPC 2019: Nanophotonics
Zhiping Zhou; Xiao-Cong Yuan; Daoxin Dai, Editor(s)

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