| 摘要 |
A write once optical recording medium has an inorganic recording film, the inorganic recording film includes an oxide film (3) of which principal component is germanium oxide GeO and a metal film (2) adjacent to this oxide film (3), the metal film (2) having a principal component of titanium/silicon alloy TiSi. According to this arrangement, it is possible to construct an inexpensive write once optical recording medium with large strength capable of high density recording by using a short wavelength light source and an optical system with a high numerical aperture having excellent characteristics. |
