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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2020-05-25
Modeling Thin Graphene Sheets in the WLP-FDTD Algorithm with Surface Boundary Condition
By
Wei-Jun Chen,

    Dr. Wei-Jun Chen

    School of Information Engineering

    Lingnan Normal University

    China

    Homepage

Qi-Wen Liang,

    Dr. Qi-Wen Liang

    School of Information Engineering

    Lingnan Normal University

    China

    Homepage

Shi-Yu Long,

    Dr. Shi-Yu Long

    School of Information Engineering

    Lingnan Normal University

    China

    Homepage

Min Zhao

    Dr. Min Zhao

    School of Information Engineering

    Lingnan Normal University

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 91, 93-98, 2020
doi:10.2528/PIERL20041503 | Google Scholar

Abstract
In this article, a two-dimensional (2D) unconditionally stable finite-difference time-domain (FDTD) approach is proposed for graphene electromagnetic (EM) device simulation. The weighted Laguerre polynomials (WLPs) are utilized to resolve stability concerns, and graphene is modelled as a thin conductive layer incorporating the surface boundary condition (SBC) in WLP-FDTD scheme. The transmittance of EM signal propagating through two graphene layers is calculated for 0-10 THz to verify the effectiveness of the proposed method. The simulation results agree excellently with the results calculated from the analytical and other numerical models. The proposed SBC-WLP-FDTD method provides an alternative numerical approach to simulate graphene-like materials with improved computing efficiency.
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Citation
Wei-Jun Chen, Qi-Wen Liang, Shi-Yu Long, and Min Zhao, "Modeling Thin Graphene Sheets in the WLP-FDTD Algorithm with Surface Boundary Condition," Progress In Electromagnetics Research Letters, Vol. 91, 93-98, 2020.
doi:10.2528/PIERL20041503
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