Twist defect in an imprinted cholesteric elastomer

被引：11

作者：

Castro-Garay, P. ^{[1
]}

Adrian Reyes, J. ^{[2
]}

Corella-Madueno, A. ^{[3
]}

机构：

[1] Univ Sonora, Dept Invest Fis, Hermosillo 83190, Sonora, Mexico

[2] Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico

[3] Univ Sonora, Dept Fis, Hermosillo 83000, Sonora, Mexico

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 16期

关键词：

chirality; cholesteric liquid crystals; elastomers; liquid crystal polymers; localised modes;

D O I：

10.1063/1.3120549

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have found that a chiral twist defect inserted in a cholesteric elastomer gives rise to circularly polarized localized modes of both handedness. This defect enhances the resonant mode amplitude whose handedness is opposite to that of the cholesteric helix for high cross-linked density, whereas for low cross-linked density, the same mode is decoupled with the defect and thus the resonant mode disappears. Finally, the resonant mode of the same handedness as the elastomer helix is maintained for both high and low cross-linked density.

引用

页数：3

共 16 条

[1] Defect modes in helical photonic crystals: An analytic approach [J].