The 2-Minute Rule for 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。All nonlinear crystals for nonlinear frequency conversion are birefringent. It is because they could have their nonlinearity only by being non-isotropic, and that also leads to birefringence.For propagation alongside the optical axis, the