On the recording of single exposure multiplexed hologram

Single exposure, multiple-object holography has been compared with single-exposure, single-object holography. The fringe visibility and hence the diffraction efficiency of single exposure multiplexed hologram decreases rapidly as the number of objects increases. It has been shown that it is possible to record these holograms with the same diffraction efficiency as that of a single-object hologram, if due care is taken for exposure time and number of objects.