Fan T Y, Huang C E, Hu B Q, Eckardt R C, Fan Y X, Byer R L, Feigelson R S
Appl Opt. 1987 Jun 15;26(12):2390-4. doi: 10.1364/AO.26.002390.
Accurate index of refraction measurements have been performed in flux-grown KTiOPO(4). These measurements give good agreement between experiment and theory for angle phase matching in Type II second harmonic generation at 1.064 microm. These refractive-index data have allowed us to calculate the propagation angles for second harmonic generation at wavelengths of interest other than 1.064 microm such as 1.34 microm. Type II second harmonic energy conversion efficiency of 1.064 micro m of up to 59% in this material has also been demonstrated with higher efficiencies possible. Limits to conversion efficiency are discussed.
已经对熔盐生长的磷酸钛氧钾（KTiOPO₄）进行了精确的折射率测量。这些测量结果表明，在1.064微米的Ⅱ型二次谐波产生的角度相位匹配方面，实验与理论吻合良好。这些折射率数据使我们能够计算出除1.064微米之外其他感兴趣波长（如1.34微米）的二次谐波产生的传播角。在这种材料中，1.064微米的Ⅱ型二次谐波能量转换效率已证明高达59%，并且可能实现更高的效率。文中还讨论了转换效率的限制。
