In spite of the fact that there are different techniques in the creation of the high-quality liquid crystals (LCs) alignment by means of various surfaces, the azimuthal and polar anchoring energies as well as the pre-tilt angle are important parameters to all of them. Here, the modified by a certain manner aligning layers, previously formed by nonlinear laser lithography (NLL), having high-quality nano-periodic grooves on Ti surfaces, recently proposed for LC alignment was studied. The change of the scanning speed of NLL in the process of nano-structured Ti surfaces and their further modification by means of ITO-coating, and deposition of polyimide film has enabled different aligning layers, whose main characteristics, namely azimuthal and polar anchoring energies, were measured. For the modified aligning layers, the dependencies of the twist and pre-tilt angles for LC cells filled by nematic E7 ({\Delta}{\epsilon} > 0) and MLC-6609 ({\Delta}{\epsilon} < 0) were obtained. Also the contact angle for droplets of isotropic liquid (glycerol), and nematic LCs was measured for the various values of the scanning speed during the laser processing.

中文翻译：

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非线性激光光刻结构对准层的方位角和极角锚定能量

尽管在通过各种表面产生高质量液晶 (LC) 排列方面有不同的技术，但方位角和极性锚定能量以及预倾角是所有这些的重要参数。他们。在这里，研究了通过某种方式改性的对准层，以前通过非线性激光光刻 (NLL) 形成，在 Ti 表面上具有高质量的纳米周期性凹槽，最近提出用于 LC 对准。在纳米结构 Ti 表面的过程中 NLL 扫描速度的变化及其通过 ITO 涂层和聚酰亚胺薄膜沉积的进一步改性使不同的配向层成为可能，其主要特征，即方位角和极性锚定能量，被测量。对于修改后的对齐层，获得了由向列 E7 ({\Delta}{\epsilon} > 0) 和 MLC-6609 ({\Delta}{\epsilon} < 0) 填充的 LC 单元的扭曲和预倾角的相关性。在激光加工过程中，还测量了各向同性液体（甘油）和向列液晶液滴的接触角，以获得不同的扫描速度值。