Abstract

Two commercial plastics have been used to record infrared interference patterns when a CO2 laser is used as a light source. Recording of transient and permanent interference gratings with different spatial frequencies was carried out. The diffraction efficiency for red light as a function of time for different exposure times is shown; maximum diffraction efficiencies attained were of the order of 30%. The possibility of using one of these plastics as an optical switch is shown.

© 1989 Optical Society of America

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