Abstract
For rapid grown DKDP crystals, homogeneity should be paid more attention than traditional grown ones because their deuterated levels will be affected more significantly by the large supersaturation, which give harmful impact on optical property as well as the related nonlinear optical applications. In this paper, from the points of deuterated level and transmittance, the homogeneity of a point-seed rapid grown DKDP crystal with sizes of 65 × 65 × 113 mm3 is investigated. The results show that the maximum discrepancy of deuterium content is 5.4%, and the ultra-violet transmittances of the dislocation zone and its surrounding areas are ~30% inferior to other regions.
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