High-speed cine recording of real-time holographic interference fringes

The use of high-speed cine cameras to record real-time holographic interference fringes of fast events has not been widespread, probably because of the relative inefficiency of amplitude holograms. However, recent advances in the processing of phase holograms has increased diffraction efficiency to the point where very high framing rates are possible. This note describes a technique which has easily given 11200 frames per second and has the potential for producing framing rates a factor of 10 or more higher.