Optischer Aufzeichnungsträger und Verfahren zu dessen Herstellung

摘要

An optical information recording medium of the invention has at least two information layers. A first information layer (100) disposed at the front side (viewed from a laser incident side) includes at least a reflection layer (3), a recording layer (6) disposed at the laser incident side with respect to the reflection layer (3), for generating a reversible change between an amorphous phase and a crystalline phase that can be detected optically by applying a laser beam, and a dielectric layer (50) disposed between the reflection layer (3) and the recording layer (6). The dielectric layer (50) contains at least Zr, Si and Cr, a ratio of Zr, Si and Cr of the dielectric layer (50) at the reflection layer side is expressed as Zr:Si:Cr = p:q:r (p + q + r = 100), a ratio of Zr, Si and Cr of the dielectric layer (50) in the vicinity of the interface at the recording layer side is expressed as Zr:Si:Cr = s:t:u (s + t + u = 100), and r < u or t < q.