Modeling of Wave Propagation in Isotropic Cold Plasma Using Iterative WLP-FDTD Algorithm

In this letter, an efficient implementation of the iterative unconditionally stable finite-difference time domain (FDTD) based on weighted Laguerre polynomials (WLPs) algorithm is presented for isotropic cold plasma. The iterative scheme is employed to reduce the splitting error in WLP-FDTD with factorization-splitting procedure. Meanwhile, a stretched-coordinate perfectly matched layer with a complex-frequency-shifted factor is used as the absorbing boundary condition. Numerical example demonstrates the accuracy and efficiency of the proposed algorithm.