采用过冷熔体定向约束生长法生长了尺寸约为30 mm×14 mm×7 mm的块状4-氨基二苯甲酮晶体,并对生长晶体的光学均匀性、光学透过率、二次谐波转换效率以及激光损伤阈值等性能进行了测试.结果表明:定向生长的4-氨基二苯甲酮晶体在650~1200 nm波段内具有90%以上的光学透过率;最高二次谐波转换效率达到64.9%;单点激光脉冲损伤阈值分别为205.4 GW/cm2(输入光波为1064 nm)和267.2 GW/cm2(输入光波为532 nm).采用过冷熔体定向约束生长的4-氨基二苯甲酮晶体适合于用作Nd: YAG激光的二次倍频器件,也适合于用作650~1200 nm波段的光学调制器件.
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