THE BEST SIDE OF MAGNETO-OPTICAL 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。All nonlinear crystals for nonlinear frequency conversion are birefringent. It is because they're able to have their nonlinearity only by getting non-isotropic, and that also brings about birefringence.As mentioned higher than, gentle that