標題: Polymer stabilization of electrohydrodynamic instability in non-iridescent cholesteric thin films
作者: Hsiao, Yu-Cheng
Lee, Wei
影像與生醫光電研究所
Institute of Imaging and Biomedical Photonics
公開日期: 24-Aug-2015
摘要: A non-iridescent cholesterol liquid crystal (CLC) thin film is demonstrated by using the polymer-stabilized electrohydrodymanic (PSEHD) method. The photopolymerized cell made from a CLC/monomer mixture exhibits an optically stable gridlike pattern. The helical axis of thus-formed CLC is aligned with the hydrodynamic flow induced by a space charge motion, and the arrayed CLC grid configuration renders a wide viewing angle thanks to the limited color shift at various lines of sight. The formation of the PSEHD structure was verified with polarized optical microscopy, ascertaining that the electrohydrodymanic pattern can be photo-cured or stabilized. The PSEHD CLC is simple to fabricate and potentially suitable for applications in wide-viewing-angle or non-iridescent devices. (C) 2015 Optical Society of America
URI: http://dx.doi.org/10.1364/OE.23.022636
http://hdl.handle.net/11536/128311
ISSN: 1094-4087
DOI: 10.1364/OE.23.022636
期刊: OPTICS EXPRESS
Volume: 23
Issue: 17
起始頁: 22636
結束頁: 22642
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