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

October 23, 2024 at 5:28 pm
Guilin Sun
Ansys Employee

In the periodic direction you should use Bloch BC.

"a" is the period;

and the absolute value of "k" is  [0 - pi/a].

when you change N, I am not sure if the bandstructure can keep the same since their absolute K is not the same. What I mean is their transmission changes a little, when you do a regular transmission simulation, like a grating. This should be done before you do the band structure simulation.

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