The invention discloses potassium dideuterium phosphate crystal growth solution high temperature processing new technology. It includes the following steps: enlarging concentration: heating up to over 105 centigrade degree to make it saturate; stirring: cooling to room temperature in 10h; dissolving: stirring and heating to make the crystal fully dissolve; hyperfine filtering: using under 0.2 micron filter element to filter. The invention reduces the impurity in the solution and increases its stability. The formed DKDP crystal has good optical homogeneity, and reduces scattering and increases growth rate. |