等腰梯形小孔的夫琅和费衍射光强分布  

Fraunhofer diffraction light intensity distribution of the equiangular trapezoid

作　　者：秦爱丽[1] 梁华秋[2] 徐静[1] 

机构地区：[1]河北工程大学理学院,河北邯郸056038 [2]台州学院物理系,浙江临海317000

出　　处：《河北工程大学学报（自然科学版）》2007年第3期94-96,100,共4页Journal of Hebei University of Engineering:Natural Science Edition

摘　　要：利用计算机数值计算了不同等腰梯形小孔的夫琅和费衍射的光强分布,并分析了其光强分布的特点,得出等腰梯形上下底长度与通过衍射场中心并与上下底垂直方向的衍射条纹可分辨程度的关系。The Fraunhofer diffraction light intensity distribution of the isosceles trapezoid was calculated by computer. The characteristics of their light intensity distribution were analyzed. The light intensity distil-bution of vertical direction to the trapezoidal bottom through the diffraction field center was analyzed emphatically and some conclusions were obtained.

关 键 词：夫琅和费衍射 等腰梯形小孔 光强分布 傅里叶变换 

分 类 号：O43[机械工程—光学工程]