標題: | Electrically assisting crystal growth of blue phase liquid crystals |
作者: | Chen, Michael Lin, Yi-Hsin Chen, Hung-Shan Chen, Hung-Yuan 光電工程學系 Department of Photonics |
公開日期: | 1-五月-2014 |
摘要: | We proposed an electrically assisting crystal growth of blue phase liquid crystals (BP-LCs) to generate uniform crystal orientation of BP-LCs. With an applied electric field, a phase transition from BP-LCs to focal conic state and homeotropic state occurs. As the electric field is removed, the crystal orientation of [220] quickly dominates the crystal growth process and other crystal orientations grow less at the same time. The BP-LCs with a single crystal orientation can be achieved with multiple cycles of the electrical treatment. We also provide a possible mechanism of crystal growth with electrical treatment which is applicable for both BP-LCs and PSBP-LCs. In addition, we conclude that the hysteresis effect is mainly affected by the domain size of PSBP-LCs rather than uniformity of crystal orientation. This study helps further understanding of the origin of hysteresis effect in PSBP-LCs which is important for development of many BP-LCs based photonic devices, such as micro lenses, displays, and lasers. (C) 2014 Optical Society of America |
URI: | http://dx.doi.org/10.1364/OME.4.000953 http://hdl.handle.net/11536/24467 |
ISSN: | 2159-3930 |
DOI: | 10.1364/OME.4.000953 |
期刊: | OPTICAL MATERIALS EXPRESS |
Volume: | 4 |
Issue: | 5 |
起始頁: | 953 |
結束頁: | 959 |
顯示於類別: | 期刊論文 |