This phenomenon is the central operating principle of the Lyot filter.
This phenomenon is the central operating principle of the Lyot filter. In solids, magnetic fields can be used to induce this in the (*) Voight effect. Its strength is directly proportional to the electric field in the Pockels effect and proportional to the square of the field in the Kerr effect. Naturally exhibited by such minerals as calcite, for 10 points— identify this property in which a crystal has different indices of refraction along different propagation axes.
This phenomenon is the central operating principle of the Lyot filter.
birefringence