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An Entity of Type : prov:Entity, within Data Space : webisadb.webdatacommons.org associated with source dataset(s)

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  • An optical information recording medium comprising: a substrate having a groove for guiding light beams and a recording layer in which a reflectance changes by irradiation with said light beams, wherein the depth of said groove for guiding light beams is in the range of ??/8n to 3??/8n, where ?? is a wavelength of said ligth beams and n is a refractive index of said substrate; the reflectance afte
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