中文说明：采用FDTD计算2维光子晶体的散射和透射的可执行程序小软件，修改输入文件可用于光子晶体的建模和计算，比较好用
English Description：
Using FDTD to calculate the scattering and transmission of 2-D photonic crystal executable program software, modify the input file can be used for the modeling and calculation of photonic crystal, it is easy to use