I am trying to simulate the far-field distribution of a dipole emitter buried within a dielectric slab but I am a bit confused about using any apodization in the field monitor and position of the field monitor to capture the near-field distribution.
The complete description of the structure is following:
It’s a few layer stack (Au/SiO2/TiO2/polymer)
at the bottom there is a 150 nm gold (Au) layer
on top of gold there is a 430 nm SiO2 layer (index, n ~ 1.45)
then a 200 nm TiO2 layer (n~ 2.35)
Finally, there is a polymer layer (thickness ~ 500 nm and index, n ~ 1.8) on top of the TiO2 layer
The dipole (TE) emitter sits deep within the polymer and close to TiO2 layer (say, 30 nm above the TiO2/Polymer interface and 470 nm below the air-polymer interface )
My Questions are
a. where should I place the field monitor for extracting the far-field? above the air-polymer interface?
b. should I use any kind of apodization filter in the field monitor as used in the case of a dipole inside a cavity?
Thanks in advance.