基于偏光全息理论研究矢量光场在光致聚合物材料中的产生和调控

矢量光场的新颖特性具有广阔应用前景，其产生方式对其应用具有重要意义。该项目提出基于偏光全息的矢量光场调控技术。偏光全息对光波偏振信息的记录，为全息术的光场调控提供新自由度，与目前矢量光场调控技术相比，偏光全息具备较强调控光场能力的同时，显示了平面化、易加工、低成本、入射光场非手性依赖等优势。拟通过矢量干涉光场与光致聚合物作用物理过程中的相位与偏振的控制，获得具有特定多维度时空结构的矢量光场。首先，获得通过构造偏振矢量干涉场进行光波偏振调控的规律，进一步，通过构造矢量干涉场实现光场自旋-轨道角动量之间的耦合；挖掘光致聚合物材料偏振光栅的写入特性与多重记录合成光场的内在规律。本项目的完成旨在揭示基于偏光全息的光场调控物理机制，提供光致聚合物材料进行光场调控的新思路；为制备偏光全息的矢量光元件提供设计思路与关键制备技术；为深入的基础理论研究提供支撑；对矢量光束及光场调控技术的应用具有重要意义。

The novel characteristics of the vector light field have broad application prospects, and the way of its generation is of great significance to its applications. The project proposes vector light field regulation based on polarization holography. The recording of polarization in hologram provides new degrees of freedom for the manipulation of the light field. Compared with the current vector light field tailoring technology, polarization holography exhibits the advantages of flat, easy processing, low cost, chiral-independent of the incoming light field. The novel type of light field with a specific multi-dimensional structure will be obtained by vector interference with phase and polarization control in the physical process of photopolymer materials. At first, we should obtain the principle of manipulating the light field by designing the vector interference field in polarization holography. Then, we will further achieve the coupling between spin-orbital angular momentum; investigate the writing characteristics of the polarization grating of photon-induced polymer materials and the inherent law of synthetic optical field by multiple recordings. The fulfillment of the project will reveal the physical mechanism of light field manipulation based on polarization holography. It will provide a new way for light field regulation by polarization holography, and reveal the designing ideas and key techniques for the preparation of the vector optical elements. The vector optical element generated by this method will provide experimental support for further study and are of great significance to the vector light applications and optical field manipulation.