title: Highly transparent ZrO(2) nanoparticle-dispersed acrylate photopolymers for volume holographic recording.
abstract: We demonstrate and characterize volume holographic recording in ZrO(2) nanoparticle-dispersed acrylate photopolymer films that have very low scattering loss. More than thirty-fold reduction in the scattering coefficient, as compared with those of previously reported TiO(2) nanoparticle-dispersed photopolymers, is achieved. It is shown that the refractive index modulation as high as 5.3x10(-3), together with substantive photopolymerization-shrinkage suppression, is obtained at the nanoparticle concentration of 15 vol.%. Dependences of nanoparticle concentration and grating spacing on the refractive index modulation are also investigated.
authors.forename: Naoaki
authors.initials: N
authors.lastname: Suzuki
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Tomita
authors.forename: Kentaroh
authors.initials: K
authors.lastname: Ohmori
authors.forename: Motohiko
authors.initials: M
authors.lastname: Hidaka
authors.forename: Katsumi
authors.initials: K
authors.lastname: Chikama