PHOTOREFRACTIVE SUBSTRATE AND HOLOGRAM RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a photorefractive substrate that enables information recorded as a hologram to be reproduced at a high S/N ratio (signal/noise ratio).SOLUTION: Provided are a photorefractive substrate having a surface in which a maximum height Rz is 0.5 μm or less, and a hologram recording medium including the photorefractive substrate.