A leapfrog weakly conditionally stable finite-difference time-domain method is extended to simulate general dispersive media modeled through a partial fraction model via a vector fitting tool and auxiliary difference equation. The computational accuracy and efficiency of this algorithm are demonstrated by numerical examples of metal and graphene.

中文翻译：

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Leapfrog WCS-FDTD方法中分散介质的有效建模

将跳跃式弱条件稳定有限差分时域方法扩展到通过矢量拟合工具和辅助差分方程模拟通过部分分数模型建模的一般色散介质。通过金属和石墨烯的数值例子证明了该算法的计算精度和效率。