Diffractive Backside (NSC)

  • 4 March 2022
  • 1 reply

Is there a simple way to make the backside of a NSC Diffraction Grating/User Defined+DiffractionGrating.DLL the diffractive side? I’ve been fighting with rotating objects 180° and then fixing the effects of that but that allows for too many places to get lost and complicate my builds. Is there a setting or trick I’m missing or should I attempt a custom .DLL? Important note: I’ll split these by a _RCWA.DLL


Best answer by mjean22 16 March 2022, 15:07

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Got it! Using a User Defined Object+Polygon_grating.dll and setting Parameter 5 (“Back side diffract”, I believe) = 1 allows for the backside to be the diffractive side!