一维纯位相线成象衍射光学元件的计算  

Calculation of One-Dimensional Pure-Phase Line-Imaging Diffractive Optical Element

作　　者：王润文[1] 叶超[1] 

机构地区：[1]中国科学院上海光学精密机械研究所

出　　处：《光学学报》1994年第9期897-902,共6页Acta Optica Sinica

基　　金：上海市科委自然科学基金

摘　　要：报道以一维平面阶梯条形纯位相结构，用等光程补偿的物理概念出发，计算了单线与双线象的衍射光学元件的多种构形，获得了与理想衍射线象符合的光强分布；同时发现双线象时会出现噪音光强小峰，这在精确成象时仍是要设法避免的．In this paper, we report the calculation of single line-image and double lineimage for various configuration of diffractive optical element (DOE), which were designed as one- dimensional plane configuration of bar- shaped pure- phase from the principle of the optical equal- path compensation. The calculated light intensity distributions are in agreement with which from the ideal diffraction disk. There are some weaker noise-light peaks between the double line-image. It should be improved for high precision imaging.

关 键 词：衍射光学元件 光学元件 线成象 

分 类 号：O438[机械工程—光学工程]