准周期LiTaO_3光学超晶格及其三倍频效应  

QUASIPERIODIC LiTaO_3 OPTICAL SUPERLATTICES AND THIRD

作　　者：祝世宁[1] 朱永元[1] 闵乃本[1] 

机构地区：[1]南京大学固体微结构物理国家重点实验室

出　　处：《物理》1998年第10期577-580,共4页Physics

基　　金：国家攀登计划

摘　　要：在ＬｉＴａＯ３单晶中引入Ｆｉｂｏｎａｃｃｉ序列铁电畴结构，首次研制成具有直接三倍频功能的准周期光学超晶格．实验证实了光的高次谐波可以通过若干个准位相匹配的二级非线性过程的耦合有效地产生。We have prepared for the first time in the world a quasiperiodic optical LiTaO 3 superlattice.Experiments with this kind of superlattice verify that quasi-phase-matched high-order harmonic generation can be realized through certain coupled parametric optical processes,showing that quasiperiodic optical superlattices may have practical applications in nonlinear optics and electro-optics.

关 键 词：准晶 准周期 光学超晶格 三倍频 钽酸锂 

分 类 号：O753.3[理学—晶体学] O734