Study of linear and nonlinear optical properties of distorted Ti-O6 perovskite structure in BaxSr1-xTiO3

被引:21
作者
Chen, WK
Cheng, CM
Huang, JY
Hsieh, WF
Tseng, TY
机构
[1] Natl Chiao Tung Univ, Inst Electroopt Engn, Hsinchu, Taiwan
[2] Natl Chiao Tung Univ, Inst Elect, Hsinchu 30039, Taiwan
关键词
optical materials; sol-gel growth; ferroelectricity; optical properties; phase transitions;
D O I
10.1016/S0022-3697(99)00347-9
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We report the linear and nonlinear optical properties of sol-gel prepared BaxSr1-xTiO3 (BST) crystalline powders. The results from powder X-ray diffraction, birefringence, and second-order optical nonlinearity measurements indicate that the paraelectric-ferroelectric phase transition of Ba0.75Sr0.25TiO3 occurs near room temperature. The second-order optical nonlinearity of the ferroelectric BST is about 7.9 pm/V. The index of refraction, n = 2.2, and birefringence, Delta n(B) similar to 0.05, are also appropriate for practical nonlinear optical applications. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:969 / 977
页数:9
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