Based on an auxiliary differential equation (ADE) and new weighted Laguerre polynomials (WLPs), an efficient 3-D finite-difference time-domain method (FDTD) with factorized-splitting (FS) scheme is proposed to calculate wave propagation in general dispersive materials. The ADE technique is introduced to model general dispersive materials. Using a new temporal basis, the new WLPs can improve computational efficiency and save computing resources. The FS scheme is used to efficiently solve the huge sparse matrix equation. A numerical example is given to verify the accuracy and the efficiency of the proposed method. The results show its superiority compared with existing methods.
CITATION STYLE
Liu, G. Y., Chen, W. J., & Zhao, M. (2023). An efficient ADE-WLP-FDTD method with new WLPs and factorized splitting scheme for dispersive simulation. IEICE Electronics Express, 20(1). https://doi.org/10.1587/elex.19.20220473
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