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Direct-write orientation of charge-transfer liquid crystals enables polarization-based coding and encryption.
Scientific Reports ( IF 4.6 ) Pub Date : 2020-09-18 , DOI: 10.1038/s41598-020-72037-z
Madeline Van Winkle 1 , Harper O W Wallace 1 , Niquana Smith 1 , Andrew T Pomerene 2 , Michael G Wood 2 , Bryan Kaehr 2, 3 , Joseph J Reczek 1
Affiliation  

Optical polarizers encompass a class of anisotropic materials that pass-through discrete orientations of light and are found in wide-ranging technologies, from windows and glasses to cameras, digital displays and photonic devices. The wire-grids, ordered surfaces, and aligned nanomaterials used to make polarized films cannot be easily reconfigured once aligned, limiting their use to stationary cross-polarizers in, for example, liquid crystal displays. Here we describe a supramolecular material set and patterning approach where the polarization angle in stand-alone films can be precisely defined at the single pixel level and reconfigured following initial alignment. This capability enables new routes for non-binary information storage, retrieval, and intrinsic encryption, and it suggests future technologies such as photonic chips that can be reconfigured using non-contact patterning.



中文翻译:

电荷转移液晶的直接写入取向可实现基于偏振的编码和加密。

光偏振器包含一类各向异性材料,它们可以通过离散方向的光,并且广泛应用于从窗户和眼镜到相机、数字显示器和光子设备的各种技术中。用于制造偏振膜的线栅、有序表面和排列的纳米材料一旦排列就不能轻易重新配置,这将它们的使用限制在固定的交叉偏振器,例如,液晶显示器。在这里,我们描述了一种超分子材料组和图案化方法,其中独立薄膜中的偏振角可以在单个像素级别精确定义,并在初始对齐后重新配置。这种能力为非二进制信息存储、检索和内在加密提供了新的途径,

更新日期:2020-09-20
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