| abstract |
The present invention provides a holographic recording composition which can further improve the diffraction characteristics and the transparency of the holographic image.nThe present technology provides a composition for holographic recording, which contains a heteropoly acid, a photopolymerizable monomer, a photopolymerization initiator, and a sensitizing dye that absorbs in the visible light region in the presence of an acid. The present technology also provides a holographic recording medium comprising at least a photocurable resin layer, the photocurable resin layer containing: heteropoly acid, photopolymerizable monomer, photopolymerization initiator, and visible light in the presence of acid The area has absorbed sensitizing pigment. In addition, the present technology also provides a diffractive optical element that uses the above-mentioned holographic recording medium. Furthermore, the present technology also provides an optical device, optical component, and image display device using the above-mentioned diffractive optical element. |