Periodically voltage-modulated graphene plasmonic waveguide for band-rejection applications

Milad Taleb Hesami Azar; Mahdi Zavvari; Pejman Mohammadi; Yashar Zehforoosh

doi:10.1117/1.JNP.12.046002

8 October 2018 Periodically voltage-modulated graphene plasmonic waveguide for band-rejection applications

Milad Taleb Hesami Azar, Mahdi Zavvari, Pejman Mohammadi, Yashar Zehforoosh

Author Affiliations +

Journal of Nanophotonics, Vol. 12, Issue 4, 046002 (October 2018). https://doi.org/10.1117/1.JNP.12.046002

Abstract

Graphene plasmonic-based nanophotonic devices are of most interest because of their potential applications in the field of optical communications. Graphene plasmonic waveguides are studied and the effect of graphene chemical potential modulation is investigated. The chemical potential modulation is applied and controlled via electrical biasing of patterned substrate with different thickness. Energy band diagram analysis of the periodically modulated waveguide shows the creation of a periodic bandgap around 30 THz and the results are confirmed by transmission spectrum calculations, which show a rejected band around the forbidden bandgap of the structure. A further study is performed around structure dependence of filtering mechanism in the proposed structure.

Citation Download Citation

Milad Taleb Hesami Azar, Mahdi Zavvari, Pejman Mohammadi, and Yashar Zehforoosh "Periodically voltage-modulated graphene plasmonic waveguide for band-rejection applications," Journal of Nanophotonics 12(4), 046002 (8 October 2018). https://doi.org/10.1117/1.JNP.12.046002

Received: 23 July 2018; Accepted: 18 September 2018; Published: 8 October 2018

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