Tag «what is optic axis»

Double Refraction

Double Refraction: When a ray of light passes through an an-isotropic crystal, it breaks into two polarized rays vibrating in mutually perpendicular planes. One ray which obeys laws of refraction is called ”ordinary ray” or ”O-ray”, and the second ray which does not obey these laws is called ”extraordinary ray” or ”E ray”. Ordinary Ray:┬áThe …