Recording Mechanism of High-Density Write-Once Disks Using Inorganic Recording Material
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概要
- 論文の詳細を見る
We realized an inorganic write-once disk using a Bi-Ge nitride alloy recording layer for an optical recording system for the Blu-ray disc format. We developed a recording system, which is composed of two types of metal nitride as a recording material. One metal nitride is decomposed easily by the heat of the laser beam during recording. The other metal nitride is not decomposed at that temperature. The recording signal modulation depends mainly on the reflectivity change of the recording layer caused by the decomposition of nitride. The non-decomposing nitride controlled the reaction and prevented deformation of the layer. Thus we could obtain a well-formed minute mark. We confirmed the reliability of our hypothesis on the recording mechanism by using another material, which is composed of Sn-N and Ti-N. By this method, we confirmed that this recording mechanism can be widely applied to any inorganic recording material.
- 2004-07-15
著者
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Hosoda Yasuo
Corporate Research And Development Laboratories Pioneer Corporation
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SATO Megumi
Corporate Research and Development Laboratories, PIONEER Corporation
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MITSUMORI Ayumi
Corporate Research and Development Laboratories, Pioneer Corporation
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Yamaguchi Masataka
Corporate Research & Development Laboratories, Pioneer Corporation, 6-1-1 Fujimi, Tsurugasima-shi, Saitama 350-2288, Japan
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Hosoda Yasuo
Corporate Research and Development Laboratories, Pioneer Corporation, 6-1-1 Fujimi, Tsurugashima-shi, Saitama 350-2288, Japan
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Mitsumori Ayumi
Corporate Research and Development Laboratories, Pioneer Corporation, 6-1-1 Fujimi, Tsurugashima-shi, Saitama 350-2288, Japan
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Sato Megumi
Corporate Research and Development Laboratories, PIONEER Corporation, 6-1-1 Fujimi, Tsurugashima-shi, Saitama 350-2288, Japan
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