Refraction in Optically
This example shows the effect of a birefringent crystal slab on an obliquely incident laser beam. Upon entering the crystal, the elliptically polarized beam breaks up into ordinary and extraordinary beams, both of which are linearly polarized. DIFFRACT allows you to monitor the intensity, phase, and polarization state of the beams as they emerge from the slab and continue to propagate in free space.
(top) Elliptically polarized beam of light entering a birefringent crystal slab, and (bottom) emergent intensity distribution at the rear facet of the crystal.
Using the Multilayer option in DIFFRACT, you can create an optical stack consisting of an arbitrary number of metallic, dielectric, birefringent, and optically active layers. You can then propagate the beam through or reflect it off the front facet of the stack. Here is a partial list of what the Multilayer option enables you to do.
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