Gao Yao, Ding Weiping, Lu Jiangang
National Engineering Lab for TFT-LCD Materials and Technologies, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
Polymers (Basel). 2022 Jun 16;14(12):2455. doi: 10.3390/polym14122455.
Twist structure liquid crystals (TSLCs) have attracted increasing attention in photonic applications due to their distinct properties: Bragg reflection, scattering, and optical rotation. However, there exist some issues due to the defects of TSLCs: weak thermal stability, narrow bandwidth, and complicated fabrication. In this review, we introduce the templating technique which includes device structure, templating process, and photonic properties of templated TSLCs to improve the issues. Furthermore, a variety of photonic applications including lasing, optical filters and gratings based on TSLCs with polymer templates are presented. Additionally, other applications of TSLCs are briefly introduced. Finally, the remaining challenges and future perspectives of templated TSLCs are proposed.
扭曲结构液晶（TSLCs）因其独特的性质：布拉格反射、散射和旋光性，在光子学应用中受到越来越多的关注。然而，由于TSLCs的缺陷，存在一些问题：热稳定性差、带宽窄和制造复杂。在本综述中，我们介绍了模板技术，包括器件结构、模板工艺以及模板化TSLCs的光子特性，以改善这些问题。此外，还介绍了基于带有聚合物模板的TSLCs的各种光子学应用，包括激光、光学滤波器和光栅。另外，简要介绍了TSLCs的其他应用。最后，提出了模板化TSLCs面临的剩余挑战和未来展望。
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