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Ansys Learning Forum › Forums › Discuss Simulation › Photonics › DGTD band structure calculation › Reply To: DGTD band structure calculation

October 22, 2024 at 7:55 pm
hamid.h.javadi
Subscriber

Concentrating again on Ansys FDTD bandstructure calculation:

I would like to introduce a perturbation in a 1D array of periodic plasmonic nanowire array (analyzed by a unit cell with Bloch boundary condition in 1D).

How can I add perturbion/defect in one unit at the end of the array? Can I calculate the E- and H-fields on the edge surface of the array and introduce it as a source in the perturbed unit? How do I achieve cyclic response between the array and the defect on one end?

Should I calculate the bandstructure to detect the change in mode frequencies? Or reflection minimum as a function of kx?