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Ansys Learning Forum Forums Discuss Simulation Photonics Weird band structure in simulation Reply To: Weird band structure in simulation

Guilin Sun
Ansys Employee

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Please check the boundary conditions, and make sure the boundary is located exactly on the periodic location, and they should be Bloch. In addition, please check the polarization of the publication. Sometimes publication may only refer to one polarization but yours have all the dipole directions. But y-direction seems less efficient.