An Optical Configuration Based on Flying Head Structure for Near-Field Recording

スポンサーリンク

概要

• 論文の詳細を見る

• We report an optical configuration with a flying head for a near-field recording system. The configuration consists of a fixed optical unit and condensing optics based on the flying head structure. While the fixed optical unit includes a light source and a signal-detection unit, the condensing optics include a solid immersion lens (SIL) embedded in the flying slider and infinite objective lens arranged on the flying slider. Free-space propagation using a collimated beam is employed to optically connect these two units. After we investigated the head structure and its fabrication process, we evaluated the fabricated optical flying head, both as an optical head and a flying head. The jitter was 8.87% when the shortest mark length was 0.364 μm. The C/N ratio was 49.53 dB for 0.2 μm of the mark length. The tolerances of relative tilt and decenter between the two optical axes of the fixed optical unit and the condensing optics which were derived experimentally were $\pm 0.3$ deg and $\pm 150$ μm. These results suggest that the optical configuration is adequately practical even for use in mass production.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2004-04-15

著者

• Hitosugi Taro

  Core Technology Development Group Micro Systems Network Company Sony Corporation

• WATANABE Kenjiro

  Core Technology Development Center, Core Technology & Network Company, Sony Corporation

• Mizuno Takeshi

  Core Technology Development Center Core Technology & Network Company Sony Corporation

• Hitosugi Taro

  Core Technology Development Group, Micro Systems Network Company, Sony Corporation, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo 141-0001, Japan

• Kojima Naoto

  Core Technology Development Group, Micro Systems Network Company, Sony Corporation, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo 141-0001, Japan

• Sako Kageyasu

  Core Technology Development Group, Micro Systems Network Company, Sony Corporation, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo 141-0001, Japan

関連論文

• Fabrication of a Solid Immersion Mirror and Its Optical Evaluation
• Femtosecond-Laser-Assisted Chemical Vapor Deposition of Cr Metal
• An Optical Configuration Based on Flying Head Structure for Near-Field Recording
• Femtosecond-Laser-Assisted Chemical Vapor Deposition of Cr Metal
• Fabrication of Gallium Nitride Grating by Interferometric Irradiation Using Focused Femtosecond Laser
• Three-Dimensional Optical Memory in a Photoacid-Induced Recording Medium
• Three-Dimensional Optical Recording in tert-Butoxycarbonyl-Protected Quinizarin Methacrylate Polymers

スポンサーリンク