High-sensitivity Kerr-effect technique for determination of 2-dimensional electric fields
High-sensitivity Kerr-effect technique for determination of 2-dimensional electric fields
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用于测定二维电场的高灵敏度克尔效应技术
DOI：
10.1109/14.135596
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
T. Takada
中科院分区：
文献类型：
--
作者：
Rongsheng Liu;A. Satoh;T. Kawasaki;K. Tanaka;T. Takada
基于克尔电光效应，提出了一种可用于测量液体介质中二维电场分布的高灵敏度测量方法。通过对光相位调制器施加脉冲电压，作者将入射光从线性偏振光转变为两个椭圆偏振光分量。通过调制这两种成分的极化状态以及直流电场和交流电场，他们确定了液体中交流和直流电场强度的振幅和方向，克尔常数很小（约为10/sup -15/ m/V/sup 2/）。该方法是自动的，灵敏度约为100 V/cm。用该方法测量了磷酸三烷基液体介质中的二维电场分布。>
On the basis of the Kerr electrooptic effect, a highly sensitive measurement method, which could be used for measuring two-dimensional electric field distributions in liquid dielectrics, is proposed. By applying a pulse voltage to an optical phase modulator, the authors changed the incident light from a linearly polarized light into two elliptically polarized components. Modulating both states of polarization of these two components as well as the DC electric field with an AC electric field, they determined the amplitudes and directions of both the AC and DC electric field intensity in liquids with small Kerr constants ( approximately 10/sup -15/ m/V/sup 2/). The proposed method is automatic and has a sensitivity approximately=100 V/cm. The two-dimensional electric field distributions in tricresyl phosphate liquid dielectric are measured with this method. >