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-May-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
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