Zn,Mg:LiNbO_3晶体的光学特性研究  

Study on optical property of Zn,Mg:LiNbO_3 crystal

作　　者：张辉荣[1] 钟杰[2] 徐观峰[1] 李斌[1] 

机构地区：[1]西南技术物理研究所,成都610041 [2]海军装备部重庆军代局,重庆400042

出　　处：《激光技术》2006年第6期578-580,共3页Laser Technology

摘　　要：为了研制出结合Zn∶L iNbO3与Mg∶L iNbO3优点的晶体,采用提拉法从熔体中生长了Zn,Mg∶L iNbO3晶体,并对它的配方和生长性能、光学均匀性、抗光折变以及倍频性能进行了研究,生长出了尺寸达40mm×70mm、双折射率梯度优于10-4/cm量级的Zn,Mg∶L iNbO3晶体,倍频得到了20m J的0.532μm的绿光输出,转换效率达到45%。该晶体是一种很有前途的非线性光学材料。Zn,Mg： LiNbO3 crystal was grown by the pulling method from the melt and its composition, growth, optical homogeneity, photo-refraction resistance and frequency doubling were investigated. The grown crystal was 40mm in diameter and 70mm in length,the birefringence gradient of Zn,Mg：LiNbO3 crystal was less than 10-4/cm ,the frequency doubling output pulse energy was 20mJ at 0. 532μm and the conversation efficiency was 45%. This erystal was a new promising nonlinear optical material.

关 键 词：材料 Zn Mg:LiNbO3晶体 光学均匀性 倍频 

分 类 号：O782[理学—晶体学]