Calculation of the effective second-order non-linear coefficients along the phase matching directions in acentric orthorhombic biaxial crystals
Calculation of the effective second-order non-linear coefficients along the phase matching directions in acentric orthorhombic biaxial crystals
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DOI：
10.1088/0953-4075/22/2/020
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发表时间：
1989-01
期刊：
影响因子：
--
通讯作者：
B. Wyncke;F. Bréhat
中科院分区：
文献类型：
--
作者：
B. Wyncke;F. Bréhat
从Boyd和Kleinman给出的定义出发，给出了四个偏心正交双轴点群的有效二阶非线性系数随晶体对称性和光在晶体中传播方向的函数关系。在相位匹配条件下，数值计算了草酸铵、碘酸、甲酸锂、磷酸钛氧钾、酒石酸钙、氧化镓锂、酒石酸钡钠和酒石酸钾八种正交非线性晶体在Nd：YAG激光器1064 nm倍频时的有效非线性系数。
The effective second-order non-linear coefficients for the four acentric orthorhombic biaxial point groups are formulated in a general way from the definition given by Boyd and Kleinman as a function of the crystal symmetry and direction of propagation of light in the crystal. The effective non-linear coefficients are calculated numerically in the case of the second harmonic generation at 1064 nm from a Nd:YAG laser, under the phase matched condition for eight orthorhombic nonlinear crystals: ammonium oxalate, iodic acid, lithium formate, potassium titanyl phosphate, calcium tartrate tetrahydrate, lithium gallium oxide, barium sodium niobate and potassium niobate.