%0 Journal Article
%T Theoretical approximation study on the helix structure of ferroelectric liquid crystal<br>铁电液晶螺旋结构的理论近似研究
%A Tang Xian-Zhu
%A Lu Xing-Hai
%A Peng Zeng-Hui
%A Liu Yong-Gang
%A Xuan Li
%A <br>唐先柱
%A 鲁兴海
%A 彭增辉
%A 刘永刚
%A 宣丽
%J 物理学报
%D 2010
%I 
%X The expressions of average refractive index in a helix pitch of ferroelectric liquid crystal(FLC) were derived by theoretical approximation computation of the helix structure at chiral smectic C phase of FLC. A conclusion that FLC molecules in a helix pitch as a whole can be considered as a model of nematic liquid crystal in terms of the expressions of average refractive index was obtained. When the thickness of FLC with a vertical alignment along the helical axis is integer times long as the helix pitch, FLC molecules can be considered as a group composed of nematic liquid crystal models. The comparisons of experiment results of ZLI-3654 FLC with 5CB nematic liquid crystal confirmed the above conclusion. The theory and experiment are in good agreement. Theoretical guidance and a deeper understanding can be provided by this theory for preparation of deformed helix FLC and vertical alignment deformed helix FLC devices, as well as application of ferroelectric liquid crystal.
%K ferroelectric liquid crystal
%K helix pitch
%K average refractive index
%K nematic liquid crystal<br>铁电液晶
%K 螺距
%K 平均折射率
%K 向列相液晶
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=0147AA18BAAB249A905D92EEBCA66D81&yid=140ECF96957D60B2&vid=6AC2A205FBB0EF23&iid=B31275AF3241DB2D&sid=3E5B07619A0191E0&eid=9833953DBE3D9F12&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=22