New micro‐structure designs of a wide band reflective polarizer with a pitch gradient
New micro‐structure designs of a wide band reflective polarizer with a pitch gradient
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DOI：
10.1080/02678290701211462
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发表时间：
2007-04
期刊：
影响因子：
2.2
通讯作者：
Jiu-mei Xiao;Dongyu Zhao;H. Cao;Huai Yang
中科院分区：
文献类型：
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作者：
Jiu-mei Xiao;Dongyu Zhao;H. Cao;Huai Yang
报道了一种新的用于制作宽带反射式偏振片的微结构设计。WBRP中的间距差异是通过在加热器上定向由不同玻璃态硅氧烷环状侧链低聚物粉末组成的单层而形成的。通过骤冷将获得的分子排列冻结。实验结果表明，在WBRP中形成了具有不同反射波长和间距梯度的各种微区域。通过一种新的实验工艺制备了具有原始液晶反射特性的WBRP，实验结果与WBRP的微结构设计相一致。
New microstructure designs for fabricating a wide band reflective polarizer (WBRP) from cholesteric liquid crystals are reported. The pitch difference in the WBRP is formed by orienting a single layer consisting of different glassy siloxane cyclic side chain oligomer powders on a heater. The molecular arrangement obtained is frozen by quenching. The experimental results show that various micro‐areas exhibiting different reflection wavelengths and pitch gradients are formed in the WBRP. A WBRP exhibiting the reflection properties of the original cholesteric liquid crystals is fabricated by a novel experimental process and the experimental results are in accordance with the microstructure designs of the WBRP.