Multi-dimensional photoalignment of photoreactive polymer liquid crystals and generation of anisotropic photonic devices

光反应聚合物液晶的多维光取向和各向异性光子器件的生成

• 批准号: 18360036
• 负责人: ONO Hiroshi
• 金额: $ 4.58万
• 依托单位: Nagaoka University of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18360036/
• 关键词: photonic crystals; liquid crystal; optical device; grating; polarized light; photoalignment; フォトニック構造; 光デバイス

The increasing need to realize the very small scale of digital compact camera, develop the high-contrast information display and high-density optical memory, has stimulated interest in highly functionalized optical devices. Diffractive optical devices are of great importance for realizing numerical optical functions such as optical memory devices, integrated optical devices, and thin film optical filters. It is possible to fabricate diffractive optical devices by exposing light sensitive materials such as photopolymers to interference light. The resulting gratings can control light propagation directions and can be used in optoelectronic equipments. In order for diffraction optical devices to play more important roles in optical information processing systems, higher functions should be added to optical gratings. It is believed that if anisotropic rather than isotropic materials for optical gratings were used, then polarization controllable diffractive devices could be developed. In the preset study we have been successfully fabricate several kinds of highly-functionalized (polarized) optical devices by using the photoalignment technique, i.e. 1) polarization multiplex recording, 2) polarization converted gratings, 3) liquid crystalline grating cells, and 4) three-dimensional holographic devices.

越来越多的需要实现非常小的数字紧凑型相机，开发高对比度信息显示器和高密度的光学内存，这激发了人们对高度功能化的光学设备的兴趣。衍射光学设备对于实现数值光学功能，例如光学内存设备，集成的光学设备和薄膜光学过滤器至关重要。可以通过将光敏材料（例如光聚合物）暴露于干扰光中来制造衍射光学设备。由此产生的光栅可以控制光传播方向，可用于光电设备。为了使衍射光学设备在光学信息处理系统中扮演更重要的角色，应将更高功能添加到光栅上。人们认为，如果使用各向异性而不是各向同性材料用于光栅，则可以开发可控制的衍射装置。在预设的研究中，我们通过使用光安装技术成功制造了几种高度功能化的（极化）光学设备，即1）极化多路复用记录，2）偏振光栅，3）液体晶体光栅细胞，以及4）三维全息手段设备。

项目成果

高分子分散型液晶における体積型回折格子構造と偏光異方特性

聚合物分散液晶中的体光栅结构和偏振各向异性

• 发表时间: 2007
• 作者: 荻原昭文;港雅広;小野浩司;今井秀哉;垣内田洋;田澤 真人
• 通讯作者: 田澤 真人

Analysis of light propagation in liquid crystal polarization gratings by means of FDTD method

FDTD法分析液晶偏振光栅中的光传播

• 发表时间: 2006
• 作者: T. Sekiguchi;H. Ono and N. Kawatsuki
• 通讯作者: H. Ono and N. Kawatsuki

光配向膜を用いた回折格子液晶セルの作成とアンカリング強度の影響

利用光配向膜制作衍射光栅液晶盒及锚固强度的影响

• 发表时间: 2007
• 作者: 及川慎司;小野浩司;川月喜弘
• 通讯作者: 川月喜弘

Twisted phase gratings induced by photoregulatged mesogenic molecules on the surface of photoreactive polymer liquid crystal film

光反应聚合物液晶薄膜表面光调节介晶分子诱导的扭曲相位光栅

• 期刊: Appl. Phys. Lett. 89
• 作者: H. Ono;T. Sasaki;A. Emoto;E. Uchida and N. Kawatsuki
• 通讯作者: E. Uchida and N. Kawatsuki

Conversion of circularly polarized light into linearly polarized light in anisotropic phase gratings using photocrosslinkable polymer liquid crystals

使用可光交联聚合物液晶在各向异性相位光栅中将圆偏振光转换为线偏振光

• 发表时间: 2007
• 期刊: Appl. Phys. Lett 90
• 作者: H;Ono;M;Nakamura;N;Kawatsuki
• 通讯作者: Kawatsuki