| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a write once optical recording medium in which a multiple value recording can be performed at a short wavelength of at most a blue laser wavelength region, and a method for regenerating its recording. <P>SOLUTION: (1) The write once optical recording medium is characterized by having a thin film (hereinafter described as an RMO film) comprising at least R, M and O elements (wherein R is at least one element selected from Y, Bi, In and elements of lanthanum series; M is at least one element selected from Al, Cr, Mn, Sc, In, Ru, Rb, Co, Fe, Cu, Ni, Zn, Li, Si, Ge, Zr, Ti, Hf, Sn, Pb, Mo, V and Nb; O is oxygen) and an organic material thin film. (2) The method for regenerating its recording of the write once optical recording medium described in (1) is characterized by forming a recording part by an optical absorption function at a recording regeneration wavelength of the RMO film only or the RMO film and the organic material thin film. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
