What Does Birefringent Crystal Mean?
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。In the same way, the polarization condition of the laser beam in a laser crystal with thermally induced birefringence is distorted. The sort of distortion is determined by the situation, since the birefringent axis incorporates a different