Is there a straightforward way to draw a Spiral Phase Plate (as shown in the figure Image may be NSFW.
Clik here to view.)?
Here the thickness of the object varies with the azimuthal angle Image may be NSFW.
Clik here to view., as in Image may be NSFW.
Clik here to view.
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How to draw a Spiral Phase Plate in COMSOL?
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