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.

实现小型数码相机、开发高对比度信息显示和高密度光学存储器的需求日益增长，激发了人们对高功能化光学器件的兴趣。衍射光学器件对于实现光学存储器件、集成光学器件、薄膜光学滤波器等数值光学功能具有重要意义。通过将光敏材料（例如光聚合物）暴露于干涉光，可以制造衍射光学器件。所得光栅可以控制光传播方向，可用于光电设备。为了使衍射光学器件在光信息处理系统中发挥更重要的作用，需要给光栅增加更高的功能。据信，如果使用各向异性而不是各向同性的光栅材料，则可以开发偏振可控衍射装置。在本研究中，我们利用光配向技术成功地制备了几种高功能化（偏振）光学器件，即1）偏振多重记录，2）偏振转换光栅，3）液晶光栅单元，4）三三维全息设备。

项目成果

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

Fabrication of optical devices by means of laser beam drawing in photo-cross-linkable polymer liquid crystals

通过在可光交联聚合物液晶中进行激光束绘制来制造光学器件

• 发表时间: 2006
• 作者: T;Akutsu;H;Ono;N;Kawatsuki
• 通讯作者: Kawatsuki

アゾ色素分散高分子への楕円偏光ホログラム

偶氮染料分散聚合物上的椭圆偏振全息图

• 发表时间: 2007
• 作者: 中村学;小野浩司;川月喜弘
• 通讯作者: 川月喜弘

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

マスク露光法による液晶高分子複合体への回折格子形成

掩模曝光法在液晶聚合物复合材料上形成衍射光栅

• 发表时间: 2007
• 作者: 田邉晴美;小野浩司;川月喜弘
• 通讯作者: 川月喜弘