高斯光束经圆孔光阑衍射后在近场区的轴向光场分布  

Near field on-axis irradiance of truncated-Gaussian apertures

作　　者：李正直[1] 倪振宇[1] 

机构地区：[1]杭州大学物理系,310028

出　　处：《中国激光》1991年第9期672-676,671,共6页Chinese Journal of Lasers

基　　金：浙江省自然科学基金资助

摘　　要：本文从衍射积分方程出发,得到了高斯光束经圆孔光阑衍射后在近场区,也就是在光阑平面和菲涅耳区之间的轴向光场分布。此外,还得到了其菲涅耳衍射特性的一些新结果。作为比较,文中也对平面波和球面波的入射进行了分析。Using the diffraction, integral equation, the irradiance in near -field , i. e., in the region between the aperture and the Fresnel region, of plane-wave Gaussian beams are presented for the first time. Some new results for Fresnel diffraction characteristics of Gaussian beams are obtained. For comparison, the incidences of plane and spherical wave are also analyzed.

关 键 词：高斯光束 衍射 光场分布 近场区 

分 类 号：O436.1[机械工程—光学工程]