LAYER-BY-LAYER ANALYSIS OF 3D FIELD BY ELECTRONIC HOLOGRAPHY
电子全息法三维物场逐层分析

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,Thus all the information of 3 D field is obtained.Spatial resolution of the numerical reconstruction is given theoretically.An example shows the reconstruction of ideal 3D field formed by computer simulation.