电子学全息法再现三维物场  

Reconstruction of 3D Field by Electronic Holography

作　　者：成铎[1] 郝志琦[1] 王淑岩[1] 丰善[1] 王国志[1] 

机构地区：[1]中国科学院西安光学精密机械研究所瞬态光学技术国家重点实验室

出　　处：《光学学报》1997年第5期577-580,共4页Acta Optica Sinica

摘　　要：叙述了一种采用电子学全息法分析三维物场的定量方法。它包括：１）三维物场全息图的数字记录，２）全息图面上复振幅分布的数字再现，３）利用空间频域衍射公式计算其它平面（平行于全息图面）上的复振幅分布。由此可以获得整个三维物场的信息。本文同时还给出了这一数字再现方法的空间分辨率。A quantitative layer by layer analysis method of 3D field is described. Electronic holography techniques are adopted in the method. It includes 1) digital recording of hologram, 2) numerical reconstruction of the complex amplitude at hologram plane, 3) calculating of the intensity at other plane parallel to hologram surface by diffraction formula in the spatial frequency domain. The whole 3D filed is reconstructed by the above three steps. Spatial resolution of this numerical reconstruction is given theoretically. An example shows the reconstruction of ideal 3D field formaed by computer simulation.

关 键 词：数字再现 电子学全息 全息 三维物场 层析 

分 类 号：TB877[一般工业技术—摄影技术] O438[机械工程—光学工程]