具有特殊空间相干结构光束的产生、传输及应用基础研究

项目名称： 具有特殊空间相干结构光束的产生、传输及应用基础研究

项目编号： No.11474213

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： 王飞

作者单位： 苏州大学

项目金额： 92万元

中文摘要： 近年来，具有特殊空间相干结构的光束由于其丰富的物理性质和新颖的传播特性引起了人们极大的关注。本项目主要研究具有特殊空间相干结构光束的产生及相干结构的调控方法，此类类光束的传播、自修复特性及在成像系统中的效应和应用。重点研究以下几个方面:研究产生具有特殊空间相干结构光束的实验方法和途径，实现相干结构的动态调控；研究此类光束在随机介质中传播的物理规律和效应，探讨通过调控光束的相干结构获得特定形状的光斑及降低湍流介质影响的方法；研究这类光束被不透明光阑遮挡后在特定传输面上的光斑恢复能力，分析光束的相干结构在光束修复过程中所起的物理作用；推导用具有特殊空间相干结构的光束照明的成像系统中光学传递函数，探讨相干结构对成像分辨率的影响及突破传统衍射极限的可能性。

中文关键词： 光束传输；相干光学；光学成像

英文摘要： In recent years, partially coherent beams with special coherent structures have been paid more and more attention owing to their physical significance and intriguing propagation properties. In this proposal, we mainly study the generation, propagation, self-healing properties of the partially coherent beams with special coherent structures and their applications in image system. Our research contents are focused on the following aspects: developing a new experimental method or approach for generating partially coherent beams with special coherent structures, and achievement of the dynamic modulating of coherent structure; studying the physical law and effects of these beams when they propagate through turbulent medium, and investigating the possibility of achieving the special intensity distribution and reducing turbulent degenerating through controlling the coherent structure; studying the self-healing ability of the partially coherent beams with special coherent structure and the effect of the coherent structure on the self-healing process;deducing the optical transfer function (OTF) of an image system illuminated by partially coherent beams with special coherent structure and analysis the influence of the coherent structure on image resolution, investigating the possibility of overcoming the conventional diffraction limit.

英文关键词： beam propagation;coherence optics;optical image