Resonance modes of plasmonic nanorod metamaterials and their applications

Junxi Zhang*, Zhijia Hu, Kang Xie, Yongqin Wei, Haoyu Wang, Fei Wang, Taiming Liang, Sonia Ghafoor, Pei Wang, Guangtao Fei, Lide Zhang, Lin Zhang

*Corresponding author for this work

Research output: Contribution to journalConference article

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.

Original languageEnglish
Article number113360P
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume11336
DOIs
Publication statusPublished - 18 Dec 2019
EventApplied Optics and Photonics China 2019: Nanophotonics, AOPC 2019 - Beijing, China
Duration: 7 Jul 20199 Jul 2019

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Copyright 2019 SPIE. One print or electronic copy may be made for personal use only. Systematic reproduction, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Keywords

  • L-Mode
  • Plasmonic nanorod metamaterial
  • Polarizer
  • Resonance mode
  • T-Mode

Cite this

Zhang, J., Hu, Z., Xie, K., Wei, Y., Wang, H., Wang, F., Liang, T., Ghafoor, S., Wang, P., Fei, G., Zhang, L., & Zhang, L. (2019). Resonance modes of plasmonic nanorod metamaterials and their applications. Proceedings of SPIE - The International Society for Optical Engineering, 11336, [113360P]. https://doi.org/10.1117/12.2547790