[vDo, vDe] = getPolarizationDirectionsUniaxial(fTheta, fPhi)
Displacement direction for given fTheta, fPhi in uniaxial
crystal ordynary vDo, and extraordynary vDe
Dmitriev V.G. Gurzadyan G.G. Nikogosyan D.N.
Handbook of Nonlinear Optical Crystals
note: this is different than in
Roberts D.A.
Simplified Characterization of Uniaxial and Biaxial Nonlinear
Optical Crystals: A Plea for Standarization of Nomenclature
and Convention.
Help for YVO4/getPolarizationDirectionsUniaxial is inherited from superclass CMaterial