Wave-front engineering by huygens-fresnel principle for nonlinear optical interactions in domain engineered structures
Wave-front engineering by huygens-fresnel principle for nonlinear optical interactions in domain engineered structures
复制标题
利用惠更斯-菲涅耳原理进行波前工程，用于域工程结构中的非线性光学相互作用
DOI：
10.1103/physrevlett.100.063902
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发表时间：
2008-02-15
影响因子：
8.6
通讯作者：
Zhao, Gang
中科院分区：
文献类型：
--
作者：
Qin, Yi-qiang;Zhang, Chao;Zhao, Gang
讨论了非线性光学相互作用的波前工程。利用惠更斯-菲涅耳原理，我们发展了一种域工程的一般理论和技术，而传统的准相位匹配（QPM）结构是其特例。本文提出了局部QPM的概念，指出QPM只在局部实现，而不是全局实现。实验结果与理论预测吻合较好。该方案集成了二次谐波的产生、聚焦和分束三种光学功能，使器件结构更加紧凑。
Wave-front engineering for nonlinear optical interactions was discussed. Using Huygens-Fresnel principle we developed a general theory and technique for domain engineering with conventional quasi-phase-matching (QPM) structures being the special cases. We put forward the concept of local QPM, which suggests that the QPM is fulfilled only locally not globally. Experiments agreed well with the theoretical prediction. The proposed scheme integrates three optical functions: generating, focusing, and beam splitting of second-harmonic wave, thus making the device more compact.