Polymer-stabilized liquid crystalline topological defect network for micro-pixelated optical devices
Polymer-stabilized liquid crystalline topological defect network for micro-pixelated optical devices
复制标题
DOI：
10.1117/12.2299505
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
F. Araoka;K. Le;S. Fujii;H. Orihara;Y. Sasaki
中科院分区：
文献类型：
--
作者：
F. Araoka;K. Le;S. Fujii;H. Orihara;Y. Sasaki
向列液晶（NLC）中空间和时间控制的拓扑缺陷在光学应用中具有广阔的前景。利用自组织是制造复杂的微米和纳米结构的关键，而这些结构通常很难通过传统的光刻工具获得。使用光聚合技术，我们展示了一种聚合物稳定的 NLC，其具有由电场引起的规则有序脐带缺陷的微像素化结构。由于聚合物网络的形成，自组织图案保持稳定而不会恶化。此外，聚合物网络允许模板化其他液晶，其光学特性可以通过温度和电场等外部刺激进行调节。
Spatially and temporally controlled topological defects in nematic liquid crystals (NLCs) are promising for its potential in optical applications. Utilization of self-organization is a key to fabricate complex micro- and nano-structures which are often difficult to obtain by conventional lithographic tools. Using photo-polymerization technique, here we show a polymer-stabilized NLC having a micro-pixelated structure of regularly ordered umbilical defects which are induced by an electric field. Due to the formation of polymer network, the self-organized pattern is kept stable without deterioration. Moreover, the polymer network allows to template other LCs whose optical properties can be tuned with external stimuli such as temperature and electric fields.