PML in 3D Plasmonic nanostructure

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Hello everyone,

I am writing this post because I need help on a simulation I did on a 3D plasmonic nanostructure. Indeed I wanted to know how PML works with periodic port .

Actually my nanostructure is in the bottom of a cube of air in which my periodic port is on top of the cube, below there is an another cube of air in which I put my other periodic port (port off) on the bottom. The Floquet periodicity are along x and y axis and the PML and excitation along z axis.

I put only a PML at below the cube of air so there is another last cube with half air/half PML. Please can you tell me if this configuration is correct to have the right "physical" R and T coefficient . My working wavelength is around 1 to 1.4 um.

Thank you.



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