| 摘要 |
PURPOSE:To provide an optical recording medium capable of reading out data repeatedly at high speed. CONSTITUTION:In a solid matrix and an optical recording medium which is composed of a substance that can be changed physically or chemically by absorbing light dispersed in the solid matrix and which utilizes a photochemical hole burning phenomenon, the substance constituting the solid matrix is an ion exchange resin, and the substance that can be changed physically or chemically by absorbing light is in an ionic state. |
