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Transient holograms in dyed plastic.

A low-cost and readily available holographic material (dyed Plexiglas) has been studied. Green light from an argon laser was used to form an interference pattern which was recorded by the red plastic. Simultaneously red light was sent and diffracted by the recorded structure. Curves showing the diffraction efficiency, as a function of exposure and maximum diffraction efficiency as a function of the grating frequency are presented. Applications in single- and double-exposure holography have been made.