In a NSC System I have placed a Hologram Surface inside a rectangular volume with an index of 1.5.
n1, n2 and n are set to 1.5. XYZ Coordinates are set to incomming and outcomming beam is 30° to get a reflective grating.
Sending a beam under matching angele so that it hits the hlogram surface at 30° leads to the expected reflected beam inside the medium.
Switching Split Rays on gives a reflected and a transmitted zero Order beam as expected.
All fine so far!
Changing the XYZ Coordinates for the outcomming beam to a value beyond TIR (for example 50°) without splitting everything stays as expected the beam is deflected under 50° and than total reflected at the rectangular volume surface.
Switching Split Rays now on gives a “geometry error”
Using Hologram Lens with fitting material instead leads to the same problem.
Is there a way to use ray splitting with Holograms using large angles inside refractive media?