Investigation of a polarizer-free liquid crystal phase modulation via nanometer size encapsulation of nematic liquid crystals

IF 2.8 3区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Express Pub Date : 2023-11-21 DOI:10.1364/ome.509266

Seok-Lyul Lee, Chang-Nien Mao, and Yi-Hsin Lin

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引用次数: 0

Abstract

We have proposed an encapsulated liquid-crystal-polymer (LC-polymer) composite structure that is manufactured via the method of LC-in-polymer encapsulation. Through this approach, the optical phase of the nanometer size encapsulation LCs is effectively increased because the layer thickness of the capsuled LCs is easily increased by various coating methods with high filling ratio (> 55%) of LCs in the polymeric matrix with embedded LCs. In such a polymer composite film of nanometer size encapsulation LC, the phase modulation can be effectively enhanced by increasing the layer thickness without negatively affecting the operating voltage or response time. In experiments, the samples reliably switch from the isotropic phase to the anisotropic phase under an external electrical field, exhibiting high optical efficiency, low operational voltage (< 25V_rms), and fast response time (< 10msec). Additionally, the LC phase modulation is not only polarization-independent but also allows for flexible devices. The enhanced electro-optic performance of the proposed nanometer size encapsulated LC devices holds potential for various applications in flexible and tunable electro-optical systems.

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采用纳米尺寸向列液晶封装的无偏振片液晶相位调制研究

我们提出了一种封装的液晶聚合物(LC-polymer)复合结构，该结构采用LC-in-polymer封装方法制备。通过这种方法，由于采用高填充率(>55%)在聚合物基质中嵌入lc。在这种纳米尺寸封装LC的聚合物复合薄膜中，可以通过增加层厚来有效增强相位调制，而不会对工作电压或响应时间产生负面影响。在实验中，样品在外加电场作用下从各向同性相位可靠地切换到各向异性相位，表现出高光效率、低工作电压(<25Vrms)和快速响应时间(<10毫秒)。此外，LC相位调制不仅与极化无关，而且还允许灵活的器件。所提出的纳米尺寸封装LC器件的增强电光性能在柔性和可调谐电光系统中具有各种应用潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optical Materials Express MATERIALS SCIENCE, MULTIDISCIPLINARY-OPTICS

CiteScore

5.50

自引率

3.60%

发文量

377

审稿时长

1.5 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optical Materials Express (OMEx), OSA''s open-access, rapid-review journal, primarily emphasizes advances in both conventional and novel optical materials, their properties, theory and modeling, synthesis and fabrication approaches for optics and photonics; how such materials contribute to novel optical behavior; and how they enable new or improved optical devices. The journal covers a full range of topics, including, but not limited to: Artificially engineered optical structures Biomaterials Optical detector materials Optical storage media Materials for integrated optics Nonlinear optical materials Laser materials Metamaterials Nanomaterials Organics and polymers Soft materials IR materials Materials for fiber optics Hybrid technologies Materials for quantum photonics Optical Materials Express considers original research articles, feature issue contributions, invited reviews, and comments on published articles. The Journal also publishes occasional short, timely opinion articles from experts and thought-leaders in the field on current or emerging topic areas that are generating significant interest.