초록 |
Photopolymer is recording material storing optical information 3-dimensionally by means of photochemical and photophysical processes. Photopolymer was evaluated as better recording material due to many advantages, such as high Diffraction Efficiencies, easy storing process, and self-developing. In this study, PVA/AA-based photopolymer films with addition of SeO2 and TiO2 properties of various ratioes were prepared.Previous study showed that Diffraction Efficiency values sharply decreased in incidence angle of over 50°, but photopolymer films with SeO2 and TiO2 in this study showed that Diffraction Efficiency values gently decreased in incidence angle of over 50°. |