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

Guilin Sun
Ansys Employee

Since bandstructure simulaiton needs Bloch boundary condition and DGTD has not implemented, please try to use FDTD instead.

Not sure what do you mean "perturbation" here: anything that breaks the periodicity will not be considered as "periodic">

For band structure edge, you can specify the correct K value, for example at the edge of symmatric point Km. You still need to simulate the band structure. YOu may also use the transmission band to find the bandgap.eg, T vs frequency.

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