help XFDTD on metamaterial and surface plasmon

Hello, my friends
I want to use XFDTD to do some simulations on the topics of metamaterial or surface plasmon, but I am a new user of this software. So, if possible, could you give me some detailed examples on these two topics.

Or if you have any good suggestions how to simulate the metamaterial and surface plasmon using FDTD, I am very glad to get your advice.

my email: hanjiag@yahoo.com.cn

Thanks very much!