Magneto-Optical Crystal - An Overview
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 a laser beam inside of a laser crystal with thermally induced birefringence is distorted. The type of distortion depends on the situation, since the birefringent axis provides a different (e.I