WAVELENGTH MULTIPLE THREE-DIMENSIONAL WRITE ONCE TYPE OPTICAL DISK

摘要

PROBLEM TO BE SOLVED: To provide a wavelength multiple three-dimensional write once type optical disk capable of reproducing a signal by using a reflected light from the disk and having excellent long term stability. SOLUTION: A multilayer film structure obtained by laminating a plurality of island-like metal thin films having different spectral characteristics via transparent resin film layers therebetween is used as a wavelength multiple optical recording medium. Thus, the wavelength multiple three-dimensional write once type optical disk having excellent long term stability by a high reflection can be easily supplied.