Broadband polarizing films by photopolymerization-induced phase separation and in situ swelling

被引：42

作者：

Fan, B. ^{[1
]}

Vartak, S. ^{[1
]}

Eakin, J. N. ^{[1
]}

Faris, S. M. ^{[1
]}

机构：

[1] Reveo Inc, Hawthorne, NY 10532 USA

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 06期

关键词：

D O I：

10.1063/1.2838299

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This letter describes the spectral broadening of cholesteric liquid crystal films prepared from a blend comprising a cross-linkable liquid crystal polymer and a noncross-linkable low-molecular-weight liquid crystal. The bandwidth of the broadened reflection band can be increased by several times upon photopolymerization. The spectral broadening arises from the formation of gradient pitch across the film thickness. It is shown that both phase separation and in situ swelling are important mechanisms for the resulting film structure. (c) 2008 American Institute of Physics.

引用

页数：3

共 18 条

[11] LIQUID-CRYSTAL LASER OPTICS - DESIGN, FABRICATION, AND PERFORMANCE [J].