Dear Srdjan, thanks a lot for this great information about simulating nanoparticles using COMSOL, it's usful indeed. Actually, I am a new user to COMSOL and now I am trying to use 3D simulation to simulate a dipole antenna placed on a slica glass substrate (dielectric constant=2.09). I want to solve for the Electric field in the gap of my dipole , so please is this formula for the excitaion is true or not?
where E0x=0, E0y=0 and E0z=1
I used two sphares, so the outer one should be Scattering Boundary Condition or should be port? to represent the case of sending electromagnetic wave to my dipole perpendiculary.
Many thanks in advance , and I am looking forward to hearing from you.
Are you solving total field ('Electric field') or scattering field ('Scattered harmonic propagation')?
If you are solving for scattering field, your definition is bad, and you should consult page about Fresnel coefficients. There you might see how your definition must look like.
If you are going for total, depends on your geometry.
I haven't cover that case, yet.
Thanks a lot for your reply. Actually, I am solving for "Electric Field" in this cae should I set a PML or not , please? and how can I send a wave perpendiularly to the antenna?
I am waithing your tutorial about this case.
Excellent! I admire all the helpful data you've shared in your articles. I'm looking forward for more helpful articles from you.
Srdjan S. Aćimović, postdoc,bio-nano photonics group,Chalmers Insitute of Technology (Gothenburg, Sweeden)google scholarLinkedIn