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21 August 2009 Phase-mapping of domain wall kinetics in lithium niobate by digital holographic interferometry
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The phase-mapping of domain wall kinetics under the uniform steady-state electric field is achieved and investigated in the LiNbO3 crystals by the digital holographic interferometry. We obtained the sequences of reconstructed three-dimensional and two-dimensional wave-field phase distributions during the electric poling in the congruent and near stoichiometric LiNbO3 crystals. The phase-mapping of domain wall motions in the two crystals are obtained. Both the phase relaxation and the pinning-depinning mechanism are observed during the domain wall motion. The residual phase distribution is observed after the high-speed domain wall motion. The corresponding analyses and discussions are proposed to explain the phenomena.
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Ya'nan Zhi, Jianfeng Sun, Yu Zhou, Aimin Yan, Zhu Luan, Enwen Dai, and Liren Liu "Phase-mapping of domain wall kinetics in lithium niobate by digital holographic interferometry", Proc. SPIE 7420, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications III, 74200X (21 August 2009);

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