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KTiOPO_4(KTP)is a well-known high efficiency SHG crystal.Depending onthe structural feature of KTP,we know that its large nonlinearity mainlycaused by large distoration in Ti-O oetahedron.We assume that still higherefficiency SHG eeystals than that of KTP could be obtained by replacing K or
KTiOPO_4 (KTP) is a well-known high efficiency SHG crystal. Depending on the structural feature of KTP, we know that its large nonlinearity mainly caused by large distoration in Ti-O oetahedron. We assume that still higherefficiency SHG eeystals than that of KTP could be obtained by replacing K or