Finite-difference time-domain analysis of cholesteric blue phase II using the Landau-de Gennes tensor order parameter model

被引：18

作者：

Ogawa, Yasuhiro ^{[1
]}

Fukuda, Jun-ichi ^{[2
]}

Yoshida, Hiroyuki ^{[1
,3
]}

Ozaki, Masanori ^{[1
]}

机构：

[1] Osaka Univ, Div Elect Elect & Informat Engn, Suita, Osaka 5650871, Japan

[2] Natl Inst Adv Ind Sci & Technol, Nanosyst Res Inst, Tsukuba, Ibaraki 3058568, Japan

[3] Japan Sci & Technol Agcy JST, PRESTO, Kawaguchi, Saitama 3320012, Japan

来源：

OPTICS LETTERS | 2013年 / 38卷 / 17期

基金：

日本学术振兴会;

关键词：

POLARIZATION; CRYSTALS;

D O I：

10.1364/OL.38.003380

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We numerically calculated the photonic band structure of a cholesteric blue phase II (BPII) liquid crystal using two models, the tensor order parameter model and the double-twist cylinder (DTC) model. The tensor order parameter model was derived numerically from the Landau-de Gennes theory, whereas the DTC model simply assumed a three-dimensional stack of ordered cylinders. The two models yielded similar photonic band structures; however, the polarization dependence of the transmission spectrum through the (100) direction in BPII was different. The results from the tensor order parameter model gave a better qualitative agreement with experiments on the transmission spectrum. This demonstrates the importance of a precise orientation model in the analysis of the optical properties of cholesteric blue phases. (C) 2013 Optical Society of America

引用

页码：3380 / 3383

页数：4

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