LIGHT-REFRACTING POLYMERIC MATERIAL Russian patent published in 2004 - IPC

FIELD: polymer materials.

SUBSTANCE: invention provides light-refracting polymeric material with high diffraction efficiency in the near infrared region that can be used in optoelectronic devices, in processes of real-time recording of dynamic holograms, and in other photon technologies. Mixture according to invention is made from composition containing (i) 90.0-99.8% of polymer with high vitrification temperature selected from: dielectric polymer, semiconductor polymer devoid of system of conjugated double bonds in its main chain or semiconductor polymer having system of conjugated double bonds in its main chain and (ii) 0.20-10.0% of cyanine or squaryl dye in the form of J-aggregates as sensitizer and nonlinear optic chromophore.

EFFECT: extended spectral range for sensitivity of material in the near infrared region, in particular light-refracting and physico-mechanical properties, and increased hologram recording speed.

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