The study of domain reversal in the near-stoichiometric ZrO2-doped lithium niobate crystals

Liang Qirui; Zhang Rong; Zhu Meiling; Liu Hongde

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The study of domain reversal in the near-stoichiometric ZrO2-doped lithium niobate crystals

Liang Qirui 1,Zhang Rong 2,Zhu Meiling 2,Liu Hongde 2 * #

1.MOE Key Laboratory of Weak-Light Nonlinear Photonics, School of Physics, Nankai University, TianJin 300071

2.MOE Key Laboratory of Weak-Light Nonlinear Photonics, School of Physics, Nankai University, Tianjin, 300071

*Correspondence author

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Funding: the Research Fund for the Doctoral Program of Higher Education of China （No.200800551019）, the Tianjin Natural Science Foundation（No.10JCYBJC02800）

Opened online:17 February 2012

Accepted by: none

Citation: Liang Qirui,Zhang Rong,Zhu Meiling.The study of domain reversal in the near-stoichiometric ZrO2-doped lithium niobate crystals[OL]. [17 February 2012] http://en.paper.edu.cn/en_releasepaper/content/4464168

Domain reversal of near-stoichiometric ZrO2-doped lithium niobate crystals was investigated. In the experiment, we observed the quadrangle domains with smaller size. The merging process of the neighboring domain walls stayed still for several minutes in the low electric field. The switching electric field for the backward domain reversal changed with the change of the forward electric field. However, these differences were diminished with the decreasing concentration of zirconium ions. The coercive field for the forward domain reversal is 900 V/mm in 0.5mol% ZrO2 doped near-stoichiometric lithium niobate crystals. With the low coercive field, near stoichiometric ZrO2-doped lithium niobate crystals would be a promising material for periodically poled lithium niobate with larger size.

Keywords:near-stoichiometric lithium niobate; zirconium doped; domain reversal

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