项目名称： 表面等离子体动态全息显示技术研究

项目编号： No.61475199

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 无线电电子学、电信技术

项目作者： 尹韶云

作者单位： 中国科学院重庆绿色智能技术研究院

项目金额： 60万元

中文摘要： 全息显示可提供三维空间真实的深度信息，显示的图像与人眼观看真实三维世界的形式一致，是最具前景的三维显示技术。然而，目前基于液晶或数字微镜的全息动态显示技术在图像再现过程中采用了空间传播电磁模式（如平面波、球面波）作为参考光进行照明，难以实现零级与再现波前的分离，使得成像效果受到干扰变差。本项目提出利用表面等离子体激元（SPPs）作为全息显示的参考光，由于SPPs是一种倏逝电磁模式，它只沿金属与电光材料界面传播，无法进入人眼，可有效消除零级衍射的干扰。通过研究SPPs与物体散射光的干涉以及SPPs与电光材料耦合向空间传播电磁场的转化机制，建立SPPs作为参考光实现全息记录与波前再现的物理模型和相应的计算全息理论。探索贵金属纳米膜与电光材料相结合实现动态三维显示的结构设计与实验制备方法，最终形成一套基于SPPs的全息动态显示技术。该技术与集成光学工艺兼容，有望成为下一代的平板三维显示方案。

中文关键词： 表面等离子体；全息；显示；动态

英文摘要： The holographic display technology provides a true three-dimensional depth information, and the displayed image is consistency with that the human eyes seen in the real world， which is considered to be the most promising 3D display technology in the future. However, due to the reference light is space propagation electromagnetic modes (such as a plane wave, spherical wave),it is hard to separate the zero order diffraction from the reconstructed wavefront. Thus the image reconstruction from the current LCD or digital micromirror (DMD)-based hologram is generally ruined. In this project, a holographic display method by using surface plasmon polaritons (SPPs) as the reference light is proposed. SPPs is an evanescent electromagnetic mode which only propagates along a metal dielectric interface and cannot enter the human eye. This effectively eliminates influence of the zero order diffraction. By studying the interference of SPPs with light scattered from objects and the transformation mechanism of SPPs into the propagating electromagnetic field in the space, the recording and reconstruction holographic model and the corresponding computational holographic theory when the reference light is SPPs will be established. By exploring the designing and the fabrication of the SPPs holographic displaying device consisting of electro-optic materials and noble metal nanofilm,a whole set of SPPs-based holographic dynamic display technology will be established ultimately. This technology is compatible with the integrated optics technology and it has great potential to become the next generation of flat panel 3D display technology.

英文关键词： SPPs;holography;display;dynamic