Propagation of light through birefringent crystal in engineering physics 1 lecture note free download
Let us consider a uniaxial crystal placed in air. As discussed in the previous module, the radiation falling at an interface may be resolved in two kinds of polarization, viz: in plane polarization and perpendicular polarization. To make the discussion simple, we will consider the normal incidence only. If no> ne, the crystal is called as positive crystal and if no< ne, the crystal is called as negative crystal.