| 摘要 |
The objective of the invention is to provide a hologram recording medium having a high diffraction efficiency, a low rate of curing shrinkage, and outstanding storage stability. This photosensitive composition for recording a volume hologram is characterized in containing a three-dimensionally crosslinking polymer matrix precursor material (I) containing a cationic-polymerizing compound (C) and a thermal acid generator (F); two or more radical-polymerizing compounds (X); a photo-radical polymerization initiator (E); and a sensitizing dye (G). The radical-polymerizing compounds (X) preferably contain a radical-polymerizing compound (B) having a radical-polymerizable, ethylenically unsaturated bond and one or more hydroxyl groups or carboxyl groups, and also contain a radical-polymerizing compound (A) having a radical-polymerizable, ethylenically unsaturated bond, but lacking hydroxyl groups and carboxyl groups. |
