Photonic defect modes of cholesteric liquid crystals

被引：161
|
作者：
Yang, YC
Kee, CS
Kim, JE
Park, HY
Lee, JC
Jeon, YJ
机构：
[1] Korea Adv Inst Sci & Technol, Dept Phys, Yusong Gu, Taejon 305701, South Korea
[2] Konkuk Univ, Dept Chem, Kwangjin Gu, Seoul 143701, South Korea
来源：
PHYSICAL REVIEW E | 1999年 / 60卷 / 06期
关键词：
D O I：
10.1103/PhysRevE.60.6852
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
We investigate defect modes of cholesteric liquid crystals as photonic band gap materials. For normal incidence of light, cholesteric liquid crystals exhibit total reflection for the circular polarization with the same handedness as that of cholesteric helix. However. the other orthogonal component is completely transmitted. When we replace a thin layer of liquid crystal by an isotropic material as a defect, defect modes are induced for both polarizations of incident light. We analyze the wavelength and reflectivity of the defect modes in terms of the refractive index of defect layer. [S1063-651X(99)09312-5].
引用
收藏
页码：6852 / 6854
页数：3
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