多参量调控的矢量光场及其新效应的研究

项目名称： 多参量调控的矢量光场及其新效应的研究

项目编号： No.11274158

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 数理科学和化学

项目作者： 丁剑平

作者单位： 南京大学

项目金额： 86万元

中文摘要： 偏振、相位和振幅是反映光场基本属性的参量，其中偏振在光场演化以及与物质相互作用过程的关键作用被近年来的研究表明所证实，与偏振相关联的矢量光场所蕴含的丰富物理性质和新颖效应日益受到人们的关注。本项目探讨偏振、相位和振幅等多参量共同受控的矢量光场的性质和和效应，研究多参量调控的新型矢量光场的生成方法、传播特性、光学现象以及在光学微操纵中的应用。研究内容包括：研究偏振、相位和振幅的空间分布可调的矢量光场的制备方案和实验系统；研究通过对矢量光场的偏振、相位和振幅的调控获取特定形态的焦场的方法、快速焦场设计算法及其实验系统；研究参量受控的矢量光场在界面上折射和反射、被障碍物衍射、被微粒散射以及和人工微结构相互作用等过程中的新现象；发展新的分析理论和计算方法以及测试技术，表征和测定矢量光场及其焦场的时空演化和结构特性.

中文关键词： 矢量光场；偏振；相位；光镊；聚焦

英文摘要： Polarization, phase and amplitude are parameters characterizing attribute of light field. Recent reserches have confirmed that polarization state plays a key role in propagation of field as well as its interaction with matter. Vector fields associated with polarization distribution are attracting much interests due to their potential unique features and novel applications. This project will make approcah to property and generation of vector field with multiple space-variant parameters such as polarization, phase and amplitude and explore the novel physical phenomena arising from multi-parameter-modulated vector beams and their applications in optical manipulation. We plan to investigate parameter-adjustable vector field in the scopes of focusing property, physical effects as well as application in optical micromanipulation. The study focuses on the following issues:looking for the novel method and experimetal configuration to create the vector field with space-variant polarization, phase and amplitude; exploring the way to shape and tailor the focal volume through modulation of mutilple parameters including polarization, phase and amplitude; investigating the optical phenomena associated with parameter-controllable vector field in physical processes such as refraction and reflection at interface, scaterring by

英文关键词： vectorial optical field；polarization；phase；optical tweezers；focusing