| 摘要 |
PURPOSE:To prevent thermal diffusion in an electrode layer and to make the thicknesswise temperature of a recording layer uniform by so providing a gap at the electrode of incident side that part of incident light is absorbed at the incident side electrode and the remainder is absorbed at the other electrode. CONSTITUTION:In an optical memory of the type for absorbing light to an electrode layer, the electrode layer of the incident light side is formed of flat plates distributed with gaps or aligned with slender flat plates via gaps to absorb part of the incident light to the other electrode layer through the electrode layer of incident light side. Since the light of suitable ratio of the incident light is not absorbed by the electrode, but passed and absorbed by the electrode layer of opposite side, the recording layer can be uniformly heated from both sides, and S/N ratio for writing and reading information is improved. Since the thermal diffusion in the electrode layer can be suppressed, its recording density can be enhanced. |
