Characteristics of recording fast processes in partially coherent light

The feasibility of recording partially coherent holograms with planar focusing is demonstrated theoretically and experimentally for an object which is displaced during exposure by a distance considerably greater than the wavelength. The feasibility of formation of such holograms is justified on the basis of the recording configuration. The dependence of the resolution in an image reconstructed from a hologram of this kind on the vibration amplitude is calculated and supported by experiment. The unique nature of recording partially coherent holograms with planar focusing lies in its low sensitivity to the displacements of an object during exposure. The insensitivity to these displacements makes such partially coherent holography similar to conventional photography, but different from classical holography which can only be used to record an object if the displacements are of the order of one wavelength.