基于Airy光束的弯曲轨道光束成像技术及其应用研究

项目名称： 基于Airy光束的弯曲轨道光束成像技术及其应用研究

项目编号： No.11474171

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 数理科学和化学

项目作者： 杨勇

作者单位： 南开大学

项目金额： 80万元

中文摘要： 目前Airy光束调制技术完全依赖调制器件，为了克服存在的灵活性差、无法重复调制、系统复杂、稳定性和实时性差等缺点。本课题从入射光线的调制入手，提出了一种离焦量相关的Airy光束调制技术；并与成像技术相结合，提出了一种基于Airy光束的弯曲轨道光束成像技术；研究了调制Airy光的弯曲轨道的实现方法和相关技术；采用基于该技术的实验光路实现了三维信息获取和反遮挡成像。研究内容包括：对弯曲轨道光束成像进行理论分析、推导和论证；产生Airy光相位模板的优化设计；研究弯曲轨道与离焦量之间的关系及Airy光斑的解码技术等。主要创新点包括：首次提出弯曲轨道光束的成像的理论和实验方法;首次提出了一种利用弯曲轨道光束实现三维信息获取的新技术；首次提出了一种反遮挡成像技术。该研究属于微纳光学领域，其预期的研究成果可直接运用到与三维成像、反遮挡成像和其它弯曲轨道光束成像相关的应用领域中。

中文关键词： 微纳光学；Airy光束；无衍射；弯曲轨道；成像技术

英文摘要： Airy beam is a type of non-diffracting beam. With free-acceleration, non-diffraction and self-reconstruction characteristics, Airy beam has attracted increasing attention recently. In the research of applications of Airy beams, the self-bending trajectory modulation technique is the core technology. In this topic, we propose a defocus amount associated Airy beam modulation technology. Combined with imaging techniques, we propose an imaging technology with self-bending beams based on Airy beam. The methods of self-bending trajectory modulation of Airy beam and related technologies are studied. Based on this technique, we experimental achieve three-dimensional imaging information acquisition and anti-blocking imaging. The research includes: the theoretical analysis, deduction and reasoning of imaging technique based on self-bending beam; the design and optimization of phase plates generating Airy beams; relations between self-bending trajectories and the defocus amount; the decoding technique of Airy spot. The main innovations include: theories and experimental methods for imaging based on self-bending beams are firstly proposed; acquisition of three-dimensional information based on self-bending beams is firstly presented; an anti- blocking imaging technology is firstly proposed. This study belongs to the field of micro-and nano-optics, and the expected results can be directly applied to applications related to three-dimensional，anti- blocking imaging and other self-bending trajectory imaging system.

英文关键词： Micro-nano Optics;Airy beams;Non-diffracting;Curved trajectories;Imaging