Photosensitive composition for volume hologram recording

Details Photosensitive composition for volume hologram recording Photosensitive composition for volume hologram recording

G - Physics

03

C

G03C 7/04 (2006.01) G03F 7/00 (2006.01) G03F 7/027 (2006.01) G03H 1/04 (2006.01)

Patent

CA 2120847

- 1 - Abstract A photosensitive composition for volume hologram recording, used for recording an interference fringe produced by the interference of laser beams or beams of light having excellent coherence as a fringe having a different refractive index. The composition comprises (a) a radical polymerizable compound having a 9,9-diarylfluorene skeleton that is liquid at normal temperature; (b) a compound having compatibility with component (a), which is selected from the group consisting of a cationic polymerizable compound, a radical polymerizable compound having no 9,9-diarylfluorene skeleton and a plasticizer; and (c) a radical photopolymerization initiator that is sensitive to a laser beam having a specific wavelength or light having a specific wavelength and excellent coherence to polymerize the component (a). The average refractive index of component (a) is larger than that of component (b).

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