Recording of holograms and holographic interferograms in MnBi films

Methods were developed for recording holograms and holographic interferograms in MnBi films by heating them with a flashlamp operating synchronously with an information-carrying laser beam. A model relationship was derived between the energies of the flashlamp and of the reference and subject beams of a YAG:Nd³⁺ laser used in two-exposure recording of a hologram in a magnetic film. Photographs were obtained of images reconstructed from a hologram and a holographic interferogram recorded in an MnBi film.