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首页> 外文期刊>Solid State Communications >Electro-optic characterization of tetragonal (1-x)Pb(Mg1/3Nb2/3)O-3-xPbTiO(3) sIngle crystals by a modified Senarmont setup
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Electro-optic characterization of tetragonal (1-x)Pb(Mg1/3Nb2/3)O-3-xPbTiO(3) sIngle crystals by a modified Senarmont setup

机译：改进的Senarmont装置对四方（1-x）Pb（Mg1 / 3Nb2 / 3）O-3-xPbTiO（3）sIngle晶体的电光表征

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摘要

The refractive indices of tetragonal (1-x)Pb(Mg1/3Nb2/3)O-3-xPbTiO(3) (PMN-xPT) single crystals were measured with a prism coupler and their linear electro-optic (EO) properties were investigated front 20 to 80 degrees C by the automated scanning Senarmont system with an ac field. The composition and temperature effect on the EO coefficients were also discussed. It has been found that their EO coefficients are much larger than that of widely used LiNbO3 single crystal and the calculated half-wave voltages are also much lower, which enable the operation at lower voltages and the smaller device dimensions. Since the excellent EO properties are very stable and such high quality single crystals with lame-size have been obtained, the PMN-xPT single crystals are a very promising candidate for EO modulation applications. By linking to the polarization-related quadratic EO coefficients, we find that the linear EO properties are related with the spontaneous polarization and dielectric constants. (c) 2005 Elsevier Ltd. All rights reserved.
机译：用棱镜耦合器测量四方（1-x）Pb（Mg1 / 3Nb2 / 3）O-3-xPbTiO（3）（PMN-xPT）单晶的折射率，其线性电光（EO）特性为通过带有交流场的自动扫描Senarmont系统研究了20到80摄氏度的锋面。还讨论了成分和温度对EO系数的影响。已经发现，它们的EO系数比广泛使用的LiNbO3单晶的EO系数大得多，并且计算出的半波电压也低得多，这使得它可以在较低的电压下工作并且具有较小的器件尺寸。由于优异的EO性能非常稳定，并且获得了具有la足尺寸的高质量单晶，因此PMN-xPT单晶是EO调制应用中非常有希望的候选者。通过链接到极化相关的二次EO系数，我们发现线性EO属性与自发极化和介电常数有关。 （c）2005 Elsevier Ltd.保留所有权利。

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