THE 2-MINUTE RULE FOR 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. This is due to they are able to have their nonlinearity only by staying non-isotropic, and that also triggers birefringence.For an arbitrary angle θ concerning pr