Open AccessStudy of holographic characteristics of TiO2 nanoparticles dispersed resisting shrinkage photopolymer
Author(s) -
Lei Zhao,
Longge Wang,
Bin Hu,
Mei Huang
Publication year - 2011
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.60.044213
Subject(s) - photopolymer , materials science , shrinkage , polyvinyl alcohol , diffraction efficiency , holography , nanoparticle , diffraction , composite material , volume (thermodynamics) , refractive index , optics , polymer , chemical engineering , optoelectronics , nanotechnology , monomer , physics , engineering , quantum mechanics , grating
Holographic recording characteristics of the hydrophilic TiO2-nanoparticle-dispersed polyvinyl alcohol/acrylamide-based thick photopolymer are studied. The experimental results show that not only the volume shrinkage during the holographic exposure can be suppressed by the inclusion of the nanoparticles, but also the diffraction efficiency and other performance parameters can be improved in the hydrophilic TiO2-nanoparticles dispersed photopolymer compared with those traditional samples. There exists an optimum concentration of TiO2-nanoperticals, in which the maximum diffraction efficiency can reach 92.3%, the maximum refractive index modulation arrives at 2.09×10-3, and the volume shrinkage reduces to 0.80%.