Disk Mastering Process with an All-Solid-State Ultraviolet Laser

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概要

• 論文の詳細を見る

• The mastering process of the optical disk is demonstrated using an all-solid-state ultraviolet laser for the first time. A 355-nm emission is obtained by the nonlinear frequency mixing between 1064 nm and 532 nm using β-BaB2O4 crystal in an external resonator. The laser head is efficient hence it does not require water cooling. A 30% improvement over the argon ion gas lasers is obtained in the track pitch variation with the 0.74 µm-pitch-tracks. The absence of the water flow for the cooling is the reason for the improvement. The optics designed at 351 nm turned out to be compatible with the 355-nm laser source.

• Publication Office, Japanese Journal of Applied Physics, Faculty of Science, University of Tokyoの論文
• 1998-04-30

著者

• Kubota Shigeo

  Research Center Sony Corporation

• YAMATSU Hisayuki

  Advanced Development Laboratory, Sony Corporation

• FURUKI Motohiro

  Advanced Development Laboratory, Sony Corporation

• KUROKAWA Koutaroh

  Advanced Development Laboratory, Sony Corporation

• KASHIWAGI Toshiyuki

  Advanced Development Laboratory, Sony Corporation

• Furuki Motohiro

  Advanced Development Laboratory, Sony Corporation, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo, 141, Japan

• Kneda Yushi

  Research Center, Sony Corporation, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo, 141, Japan

• Kashiwagi Toshiyuki

  Advanced Development Laboratory, Sony Corporation, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo, 141, Japan

• Yamatsu Hisayuki

  Advanced Development Laboratory, Sony Corporation, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo, 141, Japan

• Kurokawa Koutaroh

  Advanced Development Laboratory, Sony Corporation, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo, 141, Japan

• Kubota Shigeo

  Research Center, Sony Corporation, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo, 141, Japan

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