把 Maxwell 方程式在时间和空间领域上进行差分化。利用蛙跳式(Leap frog algorithm)--空间领域内的电场和磁场进行交替计算，通过时间领域上更新来模仿电磁场的变化，达到数值计算的目的。-The Maxwell equations in time and space on the field differencing. Using the leapfrog (Leap frog algorithm)- Space field for alternating electric

带有一个圆柱异常的PML边界的FDTD电磁场模拟- FDTD electromagnetic field simulation with a cylindrical boundary exception of PML

用FDTD实现一维、三维空间的电磁波传播模拟。(FDTD is used to simulate the propagation of electromagnetic waves in one and three-dimensional space.)