| 摘要 |
An optical recording medium simultaneously having higher recording characteristics and light resistance than ever, is obtained. <??>An optical recording medium comprising at least a phase change recording layer, a first diffusion preventing layer, a second diffusion preventing layer and a protective layer formed in this order on a substrate, characterized in that the first diffusion preventing layer and the second diffusion preventing layer comprise a non-gas element and nitrogen and/or oxygen as the main components, the non-gas element in each of the first diffusion preventing layer and the second diffusion preventing layer, is the same, and the content (atomic%) of nitrogen and/or oxygen contained in the second diffusion preventing layer, is larger than the content (atomic%) of nitrogen and/or oxygen contained in the first diffusion preventing layer. <IMAGE> |
