Jump to main content
Jump to site search

Issue 27, 2017, Issue in Progress
Previous Article Next Article

Graphene nanoribbon based plasmonic Fresnel zone plate lenses

Author affiliations

Abstract

A graphene-based metamaterial lens is theoretically proposed by combining plasmonic nanoribbons with Fresnel Zone Plate (FZP) architecture to realize wavelength-selective and tunable lensing. The plasmonic FZP lens shows higher focal intensity and efficiency compared to conventional FZP. As compared with normal graphene FZP, the lensing effect of the plasmonic FZP can be enhanced by 83 times. When compared with Au thin film based FZP lenses, the graphene plasmonic lenses can achieve comparable lensing effects, but with a thinner geometry and with an additional advantage of being wavelength selective and tuneable. The analyses of selectivity and tunability of the plasmonic lens show that the plasmonic lens functions as a filter with broadband incident light or as a switch which can be turned on and off via changing the Fermi levels. The diffraction between neighboring graphene nanoribbons and the effect of the substrate on the lensing effect is also discussed. The plasmonic effect of the nanoribbons only contributes to the focal intensity without affecting the diffraction properties of Fresnel zone plate lenses such as focal lengths. This plasmonic FZP lens is an ideal combination of near and far field optics. However, the complex interaction of diffractions within and between the FZP rings could lead to a significant change of the lensing effect, which opens the possibility of creating innovative graphene metamaterial devices. The findings in this work can be used for developing wavelength-selective electro-optical applications operating in the infrared and terahertz ranges.

Graphical abstract: Graphene nanoribbon based plasmonic Fresnel zone plate lenses

Back to tab navigation

Supplementary files

Publication details

The article was received on 08 Dec 2016, accepted on 03 Mar 2017 and first published on 15 Mar 2017


Article type: Paper
DOI: 10.1039/C6RA27942B
Citation: RSC Adv., 2017,7, 16594-16601
  • Open access: Creative Commons BY license
  •   Request permissions

    Graphene nanoribbon based plasmonic Fresnel zone plate lenses

    S. Deng, H. Butt, K. Jiang, B. Dlubak, P. R. Kidambi, P. Seneor, S. Xavier and A. K. Yetisen, RSC Adv., 2017, 7, 16594
    DOI: 10.1039/C6RA27942B

    This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements