Investigation of plasmonic properties of graphene nanoribbon waveguide on hBN and substrate in the MID-IR spectrum range

Document Type : Full length research Paper

Authors

1 1Physics Department, Faculty of Science, Shahid Chamran university of Ahvaz, Iran

2 Physics Department, Faculty of Science, Shahid Chamran university of Ahvaz, Iran

3 Physics Department, Faculty of Science, Shahid Chamran university of Ahvaz, َAhvaz, Iran

Abstract

In this study, waveguide properties of graphene nanoribbon on hBN and a substrate were investigated. Precisely, the plasmonic mode properties including real part of refractive index, propagation length, and figure-of-merit (FoM) on frequency, Fermi energy of graphene, and substrate in the mid-IR spectrum range were inspected. The simulated results show that graphene waveguide is intensively sensitive to the frequency, Fermi energy and structural geometry in the mid-IR range. Also, the propagation length for a Fermi energy of 0.3 (0.9) eV in the frequency range of 1375 cm-1 to 1600 cm-1 reachs from 0.1 (0.4) to 0.38 (4.15) µm, where shows a 3 (10) fold enhancement.

Keywords

References

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Journal of Research on Many-body Systems
Volume 9, Issue 3 - Serial Number 22
December 2019
Pages 83-93

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History

  • Receive Date: 26 February 2018
  • Revise Date: 06 May 2019
  • Accept Date: 07 July 2019

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