Dear all:
I have a question about the example "Plasmonic wire grating".
In this model, I saw that the Floquet boundary condition applied at the left and right boundary is that kF=kax (wave vector), which is equal to emw.k0*sin(alpha). However, we know that the wave vector depends on the wavelength, and wavelength depends on the refractive index of the medium. In that example, the lower sub-domain is a dielectric with refractive index of nb=1.2. So in the periodic boundary settings, why don't we set the kF=kax*nb for the lower sub-domain?
This question has bugged me for some time. I really appreciate for your idea!
I have a question about the example "Plasmonic wire grating".
In this model, I saw that the Floquet boundary condition applied at the left and right boundary is that kF=kax (wave vector), which is equal to emw.k0*sin(alpha). However, we know that the wave vector depends on the wavelength, and wavelength depends on the refractive index of the medium. In that example, the lower sub-domain is a dielectric with refractive index of nb=1.2. So in the periodic boundary settings, why don't we set the kF=kax*nb for the lower sub-domain?
This question has bugged me for some time. I really appreciate for your idea!