| 摘要 |
<p>An optical recording medium wherein the recording, erasing and reproducing of information can be done by applying light to a recording layer formed on a substrate, and the recording and erasing of information are done by a phase change between a noncrystal phase and a crystal phase. The recording medium has a structure in which at least a first dielectric layer, a recording layer, a second dielectric layer and a reflecting layer are formed in multilayer in the mentioned order, and the second dielectric layer is not transparent. This recording medium is capable of recording and erasing information by small power. Even when the recording and erasing of information are repeated many times, the operation is stable, and the characteristics thereof are not substantially deteriorated. This recording medium has a high moisture and heat resistance, a high oxidation resistance and a long life.</p> |
