基于衍射理论的无像散场曲的分析与处理  

Analysis and processing of field curvature without astigmatism based on diffraction theory

作　　者：常山[1] 吴波[1] 桑志文[1] 程立斌[1] 

机构地区：[1]上饶师范学院物理与电子信息系,江西上饶334001

出　　处：《应用光学》2011年第2期245-249,共5页Journal of Applied Optics

基　　金：江西省自然科学基金(2009GZW0026);上饶师范学院2007年科研课题基金

摘　　要：基于衍射成像理论,用洛默尔函数得到仅有场曲的像点的光强分布积分式,进而得到像面对高斯面的偏离误差——场曲的解析式,结合模拟实验,探讨了无像散场曲和无像散像点的光强分布,分析它的三维形态图、斯特列尔比、逆滤波场曲校正等,所得结果有利于衍射成像理论与技术的应用。An intensity distribution integration formula of the image point only with field curvature is obtained from diffraction image,and an analysis formula is given to provide the deviation error of image plane from Gaussian plane.Simulation experiments were conducted,and the field curvature without astigmatism and its image points were discussed.The three dimensional shape map,Strehl ratio and field curvature correction by inverse filtering were analyzed.

关 键 词：场曲 波像差 光强分布 斯特列尔比 逆滤波 

分 类 号：TN209[电子电信—物理电子学] O436[机械工程—光学工程]