A Review Of Birefringent Crystal
各向异性透明晶体如方解石、石英等的折射率，是其固有的特性，称为永久双折射。If the electric field has the path of your optical axis, 1 obtains the remarkable index ne. This can be done only if the propagation path (extra specifically, the way with the k vector) is perpendicular to your optical axis. For the other