A method for obtaining three-dimensional optical images with minimal primary distortion from microwave holograms

A new method is presented for the reconstruction of almost distortionless three-dimensional optical images from microwave (or other long wavelength) holograms. The strategy for overcoming the axial elongation of an optical image from a long wavelength hologram scaled down by a factor less than the ratio of the two wavelengths used, is demonstrated using a computer simulated microwave hologram.