Quadratic electro-optic properties of Pb(Mg1/3Nb2/3)O3-PbTiO3 transparent ceramics under both DC and AC bias.
Quadratic electro-optic properties of Pb(Mg1/3Nb2/3)O3-PbTiO3 transparent ceramics under both DC and AC bias.
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直流和交流偏压下 Pb(Mg1/3Nb2/3)O3-PbTiO3 透明陶瓷的二次电光特性。
DOI：
10.1364/ao.51.002870
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发表时间：
2012
期刊：
影响因子：
1.9
通讯作者：
Y. Zou
中科院分区：
文献类型：
--
作者：
W. Kang;Shilie Zheng;Xianmin Zhang;Xiaofeng Jin;H. Chi;Y. Zou
研究了Pb(Mg1/3Nb2/3)O3-PbTiO3 （PMN-PT）透明陶瓷在直流和交流电场偏压下的基本二次电光性质。实验证明了压电谐振对这种二次型电光陶瓷材料的电光效应的贡献，并进行了理论分析。研究发现，在压电谐振频率下，压电感应电光效应占主导地位，对微弱电信号的检测具有显著的高灵敏度。当检测交流电场强度为1 V/m、优化直流偏置时，信噪比约为20 dB。研究了交流频率和交流幅度对PMN-PT半波电压V（π）的影响。
The basic quadratic electro-optic properties of Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT) transparent ceramics have been studied under both DC and AC electric field bias. The contribution of piezoelectric resonance to electro-optic effect for this quadratic electro-optic ceramics material has been experimentally demonstrated and theoretically analyzed. It is found that, at the piezoelectric resonance frequencies, the piezoelectric induced electro-optic effect dominates and leads to a dramatically high sensitivity for weak electric signal detection. About 20 dB signal-to-noise ratio is attained when detecting AC electric field strength of 1 V/m with optimized DC bias. Besides, the effects of AC frequency and amplitude on halfwave voltage V(π) of PMN-PT are investigated.