中文摘要：

新型无机二阶非线性光学晶体材料在光电子领域（如频率变换、光调制、通信和信息处理等领域）有着重要的应用，是材料研究的前沿方向之一。1998年以来，人们利用易于发生二阶姜-泰勒效应的离子——d^0过渡金属离子（e．g．Mo^6＋，W^6＋，V^5＋，Nb^5＋）和含有非成键孤对电子（stereochemically active lone pair，SCALP，e．g．I^5＋，Te^4＋，Se4^＋，Sn^2＋）的阳离子，合成了大量具有非中心对称结构（NCS）的化合物，其中许多显示出很强的倍频效应（〉400×α—SiO2），它们是一类有应用前景的非线性光学晶体材料。本文将这些材料分成三类进行综述，即：只含一类二阶姜一泰勒离子（d^0或SCALP）的化合物；同时包含两类二阶姜一泰勒离子的化合物以及包含二阶姜-泰勒离子和其他非中心对称基团（共轭π-硼酸盐体系、PO4四面体和d^10离子）的化合物。本文分别就新材料探索、单晶生长等综述了近10年来基于二阶姜-泰勒效应的非线性光学晶体材料的研究进展。

英文摘要：

Explorations of new inorganic second-order nonlinear optical （NLO） materials is one of the current frontier topics due to their optoelectronics application such as frequency shifting, optical modulating, telecommunications and signal processing. Since 1998, a series of noncentrosymmetric （NCS） and polar oxides containing cations susceptible to second-order Jahn-Teller （SOJT） distortions, specifically, octahedrally coordinated do transition metals （ TMs ： Mo^6＋ , W^6＋, V^5 ＋, and Nb^5 ＋. ） and cations with stereo-chemically active lone pairs （ SCALP, I^5＋ , Te^4＋ , Se^4＋ , and Sn^2＋ ）, were successfully synthesized. Many of these materials exhibit large powder second-harmonic generation （SHG） effi- ciencies （ 〉 400 × α-SiO2 ）. This paper reviewed the progress on materials of the past decade, including the search for new materials and crystal growth. The materials were divided into three categories： NCS oxides containing one kind of SOJT cations （do or SCALP）, NCS oxides containing both kinds of SOJT cations, and NCS oxides containing SOJT cations and other NCS building units such as borate w-orbital systems, tetrahedral groups and d^10 transition metal cations （Zn^2 ＋ , Cd^2＋ , and Sn^4＋. ）.