title: Order-of-magnitude polymerization-shrinkage suppression of volume gratings recorded in nanoparticle-polymer composites.
abstract: We demonstrate substantial shrinkage suppression of nanoparticle-polymer composite transmission gratings by use of the step-growth polymerization mechanism. It is shown that the polymerization shrinkage can be reduced as low as 0.3% at the nanoparticle concentration of 35 vol. % by which the refractive index modulation and the material sensitivity are maximized to be 8x10(-3) and 1014 cm/J, respectively, in the green. Our results offer a noticeable advance in the development of holographic data storage materials.
authors.affiliation: Department of Electronics Engineering, University of Electro-Communications,1-5-1 Chofu-gaoka, Chofu, Tokyo 182-8585, Japan.
authors.forename: Eiji
authors.initials: E
authors.lastname: Hata
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Tomita