电子学全息法再现三维物场

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。本文同时还给出这一数字再现方法的空间分辨率。最后通过计算机模拟展示了一个理想三维物场的再现过程及再现结果。

Reconstruction of 3D Field by Electronic Holography

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.