Ansys Learning Forum › Forums › Discuss Simulation › Photonics › Reflection is more than 1 with BFAST source for off-normal incident › Reply To: Reflection is more than 1 with BFAST source for off-normal incident
February 22, 2023 at 11:23 pm
Guilin Sun
Ansys Employee
Did you check the log file at what percentage the simulation was terminated? if it is at 100% then you need to increase the simulation time.
Did you check the diffraction? what is the largest diffraciton angle? if it is over 60~70deg, you need to use Steep Angle PML.
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Please test normal incidence first.