HOW MUCH YOU NEED TO EXPECT YOU'LL PAY FOR A GOOD BIREFRINGENT CRYSTAL

Each time a beam is refracted in the surface of the birefringent crystal, the refraction angle will depend on the polarization route. An unpolarized mild beam can then be break up into two linearly polarized beams when hitting surfaces of the fabric with non-standard incidence (double refraction).Clearly, the greater the thickness or variation in r