A Drude-Two-CP-FDTD method for Drude-critical points model of metal nanofilmsJian-Xiao Liu, Yan Jiang, Ling-Hui Ming, Wan-Chun Tang and Hong-Wei YangEur. Phys. J. Plus, 135 10 (2020) 805DOI: https://doi.org/10.1140/epjp/s13360-020-00824-8