RESEARCH OF CHEMICAL HOMOGENEITY OF NIOBIUM PENTOXIDE AND LITHIUM NIOBATE CHARGE DOPED BY MAGNESIM AND ZINC
Precursors of Nb2O5:Mg:Zn were obtained by homogeneous dop- ing. The precursors were used for synthesis of the single phase charge co-doped with magnesium and zinc for lithium niobate crys- tals LiNbO3:Mg:Zn with the given dopant concentration. The mi- cro-homogeneity of the synthesized products was investigated by the laser ablation inductively coupled plasma mass spectrometric (LA IСP MS) technique. The standard deviation of dopant distri- bution in Nb2O5:Mg:Zn and LiNbO3:Mg:Zn was shown to be in the range 5.0-9.2%. The results are important for growing homoge- neous lithium niobate crystals of a high optical quality.