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Ansys Learning Forum › Forums › Discuss Simulation › Photonics › The role of the assume periodic option in far-field projections › Reply To: The role of the assume periodic option in far-field projections

March 20, 2024 at 3:35 pm
Guilin Sun
Ansys Employee

In your case ther unit cell (one period) contains several teeth with different size, right? using grating analysis gets the result from infinite numbber of periods. If you want results from finite number of periods, yes you have to use "assume periodic" to approximate it.

 

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