I re-run the file of this post: 基于等离子体表面激元（SPP）的MIM结构波导的光源选择，可以直接使用模式光源中的基础TM模光源来激发吗？
to find figure 3(a) and 4(a). for example my figure 4(a):
First peak is similar to paper result but second peak has problem and it is larger than it.
I am very confused.
If possible, check my file and solve my problem.file:plasmonic waveguide filter_Mod.fsp (292.5 KB)