衍射光学元件的效率研究  

Efficiency Study for Diffractive Optical Element

作　　者：邹凯[1] 邓晓鹏[2] 李慎[1] 

机构地区：[1]电子科技大学物理电子学院 [2]怀化学院物理电子技术系,怀化418008

出　　处：《光学与光电技术》2005年第4期46-49,共4页Optics & Optoelectronic Technology

摘　　要：衍射光学元件的衍射效率是其在设计和应用时需要重点考虑的因素。用标量理论的方法分析可以得到较高的理论衍射效率。然而,标量理论所作的假定限制了其在高频衍射结构中分析结果的精确性,制作上的局限也降低了实际可能的衍射效率。讨论了标量分析的方法,并说明了怎样结合设计实际来实现对衍射效率的提高。The efficiency of diffractive optical elements is an important factor for design and application. These elements have very high theoretical diffraction efficiencies when they are analyzed by first-order scalar methods.However, the assumption made by this scalar approach limits the accuracy of the analyzed results for high frequency diffractive structures. Fabrication limitations also reduce the physically achievable diffraction efficiency.This paper discusses the alternatives to the conventional scalar analysis technique and explains how to increase the diffraction efficiency.

关 键 词：衍射光学元件 衍射效率 编码 标量理论 高频衍射 

分 类 号：TN201[电子电信—物理电子学]