Fabrication and properties of composite holograms recorded in DMP-128 photopolymer

Abstract

Special features of the photopolymer system DMP128 can be exploited to form composites comprising a supporting matrix derived from the photopolymer and a dispersed second phase. Examples of two composite types are described here; composites with a nematic liquid crystal and composites used as waveguides. The diffraction efficiency of holograms containing the liquid crystal can be rapidly changed by applying an electric field. Periodic structures can easily be incorporated in the waveguide composites.