Photorefractive materials
AssigneeInternational Business Machines Corporation
InventorsStephen P. Ducharme, William E. Moerner, John C. Scott, Robert J. Twieg
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Abstract
The present invention relates to polymeric materials that exhibit an erasable photorefractive effect which can be fabricated into optical devices such as optical wave guides.
Claims17
An amorphous photorefractive material comprising a polymer, a non-linear optical chromophore and a charge transport agent, said material having a diffraction efficiency greater than 10.sup.-8 and a photoconductivity greater than 10.sup.-14 inverse-ohm-centimeter per watt per square centimeter.
An optical article for the transmission of electromagnetic radiation comprising an amorphous photorefractive material comprising a polymer, a non-linear optical chromophore and a charge transport agent, said material having a defraction efficiency greater than 10.sup.-8 and a photoconductivity greater than 10.sup.-14 inverse-ohm-centimeter per watt per square centimeter.
Dependencies are inferred from the claim text.