%0 Journal Article
%T Structure of image fields in an aplanatic optical system with coherent point source illumination<br>相干点源照明时消球差光学系统的像场结构
%A Guo Han-Ming
%A Chen Jia-Bi
%A Zhuang Song-Lin
%A <br>郭汉明
%A 陈家璧
%A 庄松林
%J 物理学报
%D 2007
%I 
%X Using the vector Fourier transform and stationary phase method, an integral representation of the structure of image field in an aplanatic system with polarized point source located at arbitrary position on the optical axis is obtained. Effects of wide aperture angle in object space on the structure of image field are examined numerically for the case of linearly polarized illumination. Simulation calculations show that, in a plane perpendicular to the optical axis, if the object space aperture angle is wide, the distribution of magnetic field will not be identical to that of electric field after they are rotated 90° around the optical axis with respect to each other, the contours of distribution of the electric and magnetic energy densities and the Poynting vector are approximately elliptical, and the object space aperture angle is the dominant factor that makes the distribution of Poynting vector lose circular symmetry. At the same time, the major axis of the contour of distribution of the electric energy density is perpendicular to the direction of the electric vector in the object space when using small image aperture angle, and will turn graduately to the same direction as the electric vector in the object space with the increase of image aperture angle. These conclusions are completely different from the predications of the previous theory.
%K imaging systems
%K structure of the image field
%K vector Fourier transforms
%K stationary phase method<br>成像系统
%K 像场结构
%K 矢量傅里叶变换
%K 稳相法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=2DC835B003CC3827&yid=A732AF04DDA03BB3&vid=014B591DF029732F&iid=0B39A22176CE99FB&sid=A9C78B2A6AAEEAAD&eid=F2947E14627CD734&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=20