Article ID Journal Published Year Pages File Type
9786052 Optics Communications 2005 8 Pages PDF
Abstract
The effect of solubility parameter mismatch between liquid crystal (LC) and resin, and crosslinking density of resin phase on morphology and diffraction efficiency of holographic polymer dispersed liquid crystal (HPDLC) have seen systematically studied by varing the chemical structure of polyurethane acrylate resin with regard to the prepolymer molecular weight, type of diisocyanate, and functionality of reactive diluent. It has been found that with dissimilar chemical structure leading to large difference in solubility parameter between LC and resin, and with high crosslinking density under similar solubility parameter difference, fast formation of grating, large droplet size and high diffraction efficiency were generally obtained.
Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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