光致取向衬底上nematic liquid crystal易轴的电辅助光诱导方位滑动
Electrically assisted light-induced azimuthal gliding of the nematic liquid crystal easy axis on photoaligned substrates
摘要：
我们研究的易轴，发生在与光取向偶氮染料膜接触的液晶中的方位角滑动的重定向紫外光结合的作用下的平面电场。对于用线性偏振光照射，发现易轴重取向的动力学比非偏振光的情况更快。此外，它减缓与用于制备偶氮染料膜的初始照射剂量。这种效果是通过使用先前建议的唯象模型解释。通过求解该模型的转矩平衡方程，给出了与实验数据吻合较好的理论计算结果。
英文摘要：
We study azimuthal gliding of the easy axis that occurs in nematic liquid crystals brought in contact with the photoaligned azo-dye film under the action of reorienting UV light combined with an in-plane electric field. For irradiation with the linearly polarized light, dynamics of easy axis reorientation is found to be faster as compared to the case of non-polarized light. In addition, it slows down with the initial irradiation dose used to prepare the azo-dye film. This effect is interpreted by using the previously suggested phenomenological model. We present the theoretical results computed by solving the torque balance equations of the model that agree very well with the experimental data.
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