空间相关函数的构建和光场的表征及其傍轴与非傍轴统计特性的研究

项目名称： 空间相关函数的构建和光场的表征及其傍轴与非傍轴统计特性的研究

项目编号： No.11247004

项目类型： 专项基金项目

立项/批准年度： 2013

项目学科： 物理学II

项目作者： 梅掌荣

作者单位： 湖州师范学院

项目金额： 20万元

中文摘要： 光场的相干偏振等统计特性对激光通信、遥感、激光系统工程设计等领域都具有十分重要的意义。随机电磁光场模型因同时考虑相干偏振等统计特性，可更加全面地认识和理解随机涨落电磁光场的统计光学特性。本项目通过构建符合物理条件的新的相关函数，建立相应新的随机电磁光场模型以合理全面地表征某些实际光场分布，分析随机电磁光场模型在不同复杂光学系统及随机湍流介质中的傍轴与非傍轴传输规律，预测实际光场在复杂系统和介质中传输统计特性。研究结果不仅有理论上的创新性，而且可用于指导实验，预测新的实验结果，为实际电磁光场在激光通讯、激光系统工程设计、偏振遥感、光纤耦合、激光准直等应用领域的发展提供理论基础和计算依据。

中文关键词： 空间相关函数；随机电磁光场；交叉谱密度矩阵；统计特性；傍轴与非傍轴传输

英文摘要： The coherence, polarization and other statistical properties of light field have great significance to laser communication, remote sensing, laser systems engineering design, etc. Since the random electromagnetic beam takes into account the coherence, polarization and other statistical properties of light field at the same time, it can be more fully comprehend and understand the statistical optical properties of the random fluctuations electromagnetic light field. In this project, we will build some new correlation function according with physics conditions, and establish the corresponding new random electromagnetic light field model to reasonably describe some practial light field distribution, and analyse the paraxial and nonparaxial propagation law of random electromagnetic light field model in the different complex optical system and random turbent medium, and predict the statistical properties of the actual light field. The results not only have theoretical innovation, but also can be to predict the new experimental results to guide experimental operation and provide the theoretical basis and computational model for some actual application on laser communications, laser systems engineering, polarization remote sensing, fiber-coupled laser collimator applications etc.

英文关键词： spatial correlation function；random electromagnetic light field；cross-spectral density matrix；statistical properties；paraxial and nonparaxial propagation