全息波导衍射特性与能量分布均匀性研究  

Diffraction Characteristics of Holographic Waveguide and Uniformity of Energy Distribution

作　　者：周亮[1,2] 康明武[1] 李晓霞[2] 李文强[2] 龙尤[2] 

机构地区：[1]光电控制技术重点实验室,河南洛阳471009 [2]中航工业洛阳电光设备研究所,河南洛阳471009

出　　处：《光学学报》2013年第F06期72-76,共5页Acta Optica Sinica

摘　　要：将传统全息图与波导全息图进行了对比分析，采用耦合波理论方法分析了全息波导的衍射特性，数值仿真分析了衍射效率与能量均匀性之间的关系；研究结果表明，在布拉格条件下波导全息图比传统全息图有更高的衍射效率和更大的角选择性；通过控制全息图不同位置的衍射效率可实现能量均匀分布，并给出了衍射次数与衍射效率之间应满足的关系。Traditional holograms and waveguide holograms are compared and analyzed. A coupled wave approach is used to analyze the diffraction characteristics of holographic waveguide, the relationship between diffraction efficiency and the uniformity of energy distribution is discussed by numerical simulation. The results show that, the waveguide holograms have higher diffraction efficiency and greater angle selectivity than the conventional holograms in the Bragg condition. By controlling the diffraction efficiency of the hologram, uniform distribution of energy is achieved. The relationship between the number of diffraction and the diffraction efficiency is also given.

关 键 词：衍射 全息 衍射效率 耦合波理论 均匀性 

分 类 号：O438.1[机械工程—光学工程]