| 摘要 |
The present invention provides a hologram recording medium wherein, in holographic memory recording using a blue laser as well as a green laser, a fall in light transmittance is very small even after recording. A hologram recording medium comprising at least a hologram recording material layer, wherein the hologram recording material layer (21) comprises at least fine particles of a metal compound, and a photopolymerizable compound; and the recording sensitivity of said recording medium (11) to a laser light having a wavelength of 405±5 nm is 0.05 cm/mJ or more and 1.20 cm/mJ or less.
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