Sakhno O. Peculiarities of phase holograms formation in the photopolymer compositions

The researches of several peculiarities of phase and relief - phase holographic recording on self-processing photopolymer composites PPC, including polymer and low-molecular neutral diffusant (ND): the relation between holographic characteristics of PPC and thermodynamical properties of composites is established; the ways of modification of composition for incresing of their holographic and physical properties are determined; the methods of minimization of lightscattering in holograms in thick layers of PPC. The researches of composites properties and the peculiarities of recording are shown on the example of holographic recording of elementary volume transmission phase gratings in the two-beams symmetric scheme in the beams of Ar laser (0.488 mcm). The thermodynamical model of holographic recording on the researched materials are proposed. The biphase structure of the holograms - gratings on PPC and the dependence of holographic properties of composites and its sensitivity on a ratio of solubility par ameters of used polymer and ND is shown. New compositions with twice increased holographic efficiency, photosensitivity and beam durability (more than in oder in respect with original PPC-488) have been received. The regime of manufacture of holographic gratings with thickness up to 1 mm is offered. Some peculiarities of relief formation of during holographic recording on these materials were investigated. Researched and new proposed photopolymers can be used for manufacture cheap high-efficiency and durable holographic diffraction elements for optical and laser devices