Electrically switchable structural patterns and diffractions in a dual frequency nematic liquid crystal
Electrically switchable structural patterns and diffractions in a dual frequency nematic liquid crystal
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DOI：
10.3788/col202321.010501
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发表时间：
2022
影响因子：
3.5
通讯作者：
Z. Song;Ziyang Li;Xiaohu Shang;Chaoyi Li;Lingling Ma;Yanqing Lu;Bing-Xiang Li
中科院分区：
文献类型：
--
作者：
Z. Song;Ziyang Li;Xiaohu Shang;Chaoyi Li;Lingling Ma;Yanqing Lu;Bing-Xiang Li
液晶中的电驱动结构模式由于其光电应用而引起了人们的广泛关注。在这里，我们揭示了双频向列LC （DFNLC）中各种吸引人的可重构LC微结构，包括一维卷，v形图案，二维网格和不稳定混沌。这些模式可以在彼此之间切换，并且晶格常数可以通过调节外加电场的振幅和频率来调制。这种可电切换的自组装微结构及其光束导向能力为调整基于dfnlc的光学器件的功能提供了一种可行的方法。DOI: 10.3788 / COL202321.010501
Electrically driven structural patterns in liquid crystals (LCs) have attracted considerable attention due to their electrooptical applications. Here, we disclose various appealing reconfigurable LC microstructures in a dual frequency nematic LC (DFNLC) owing to the electroconvection-induced distortion of the LC director, including one-dimensional rolls, chevron pattern, two-dimensional grids, and unstable chaos. These patterns can be switched among each other, and the lattice constants are modulated by tuning the amplitude and frequency of the applied electric field. The electrically switchable self-assembled microstructures and their beam steering capabilities thus provide a feasible way to tune the functions of DFNLC-based optical devices. DOI: 10.3788/COL202321.010501