| 摘要 |
PURPOSE:To improve sensitivity, C/N ratio and long-period stability and to considerably reduce cost by using a compound oxide of tellurium and selenium as a recording medium and forming the recording medium by a sol-gel method using an alkoxide of the tellurium and selenium. CONSTITUTION:The compound oxide of the tellurium and selenium is used as the recording medium and the recording medium is formed by the sol-gel method using the alkoxide of the tellurium and selenium. Then, the power of a recording laser can be made lower and the sensitivity can be made higher although the film is thicker than heretofore. The compsn. thickness and uniformity of the recording film can be satisfied simply by controlling the mixing ratio, compsn. ratio and dipping speed of the soln. and the rotating speed of a spinner. The improvement in the C/N ratio and long-period stability is thus made possible. |
