Handon Um


Thank you for your kind reply. I resolved the issue in FDTD.

But, in RCWA, I still can’t resolve the issue that the result shows larger than 1. 

I have tested regular array of other structures (eg. tapered wire, cone, pillar, rectangle, pyramid), and only the regular pyramid arrray showed larger than 1.

Is the periodicity of regular pyramid can cause an error in RCWA?