| 摘要 |
PURPOSE:To enable writing due to small light energy and to simplify the constitution of a recording medium, by oxidizing a thin film obtained by the vacuum vapor deposition of phthalocyanine by using laser beam to change the reflectivity and transmittance thereof. CONSTITUTION:A thin film with a thickness of, pref., 0.05-0.5mum obtained by the vacuum vapor deposition of phthalocyanine such as aluminum phthalocyanine is pref. treated with a solvent such as THF or pyridine. Subsequently, this treated thin film is oxidized by using semiconductive laser beam with a beam diameter of 2mum and power of 50mW to perform recording. EFFECT:It is unnecessary to provide a protective layer for preventing the adhesion of a sublimed substance. |
