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Diffraction Grating Direction

  • 6 October 2022
  • 1 reply
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Hello,

What is the supported method for changing a diffraction grating’s direction? By default, the grating is ruled in the x direction. I would like to change it to the y direction. I have tried surrounding the grating by a coordinate break of 90 degrees about z, but this did not change the orientation of the diffracted light. I have also tried using 90deg rotation about z in the tilt/decenter menu to no effect.

Thanks!

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Best answer by Julian.Irwin 6 October 2022, 20:14

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It appears that the grating direction was rotating after all. The coordinates in the 3D layout also rotated, so it appeared that the direction was still along x. When I create two gratings in the same model and rotate one but not the other, the directions are perpendicular as expected.

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