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Study on optical heads for wristwatch-size optical memory with super-high recording density and nano-meter tracking performance

Research Project

Project/Area Number 10355008
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section展開研究
Research Field 設計工学・機械要素・トライボロジー
Research InstitutionThe University of Tokyo

Principal Investigator

ITAO Kiyoshi  Graduate School of Frontier Sciences, The University of Tokyo, Professor, 大学院・新領域創成科学研究科, 教授 (80245985)

Co-Investigator(Kenkyū-buntansha) AOYAGI Seiji  Kansai University, Dept. of Industrial Engineering, Associate Professor, 工学部・管理工学科, 助教授 (30202493)
ITO Toshihiro  The University of Tokyo, RCAST, Associate Professor, 先端科学技術研究センター, 助教授 (80262111)
HOSAKA Hiroshi  Graduate School of Frontier Sciences, The University of Tokyo, Professor, 大学院・新領域創成科学研究科, 教授 (50292892)
UMEDA Kazunori  Chuo University, Dept. of Precision Mechanics, Associate Professor, 理工学部・精密機械工学科, 助教授 (10266273)
OSUMI Hisashi  Chuo University, Dept. of Precision Mechanics, Professor, 理工学部・精密機械工学科, 教授 (00203779)
Project Period (FY) 1998 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥23,730,000 (Direct Cost: ¥21,900,000、Indirect Cost: ¥1,830,000)
Fiscal Year 2001: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Fiscal Year 2000: ¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 1999: ¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1998: ¥10,400,000 (Direct Cost: ¥10,400,000)
KeywordsOptical disk memory / Near field optics / Lubricant / Tracking / Contact slider / Servo pattern / Minute hole / Simulation / 浮動スライダ / フレキシブル導波路 / 接触ヘッド / 近接型光ヘッド / 2段サーボ / 静電アクチュエータ / トラッキングエラー / マイクロカンチレバー / 近接場光 / AFM / タッピング / アクセス制御 / 回転機構
Research Abstract

Optical and mechanical characteristics of the super-high density, optical memory were studied.
1. A new head assembly which have functions of suspension and waveguide was developed: Its mechanical characteristics was clarified.
2. An evaluation techniques of the optical characteristic of an head which detects weak optical power of the order of nW was established. It was confirmed that the optical pits with the length of 100 nm can be read out in high speed and with enough S/N ratio.
3. A monolithic type optical head assembly which used the ultraviolet stiffening resin was produced. Optical reproduction of sub-micron pits and stabile flying characteristics were verified.
4. The optical contact slider where the lubricant was used as immersion oil was developed. It was shown that the optical pits are reproduced with high-resolution and that the head slides stably with the low contact pressure.
5. A new optical head was proposed which distributed the metal scattered body to the center of an open hole. Both the optical output power and the resolution were improved.
6. A new optical head with T or L shaped open hole was proposed. With this head, it becomes possible to read data and detect tracking error at the same time without servo patterns.
7. Production method and mechanical characteristics were studied for probe array heads which use cantilevers for AFM aiming at micro-sized optical heads. Cantilevers which were made of piezo-electric thin film and move three-dimensionally are produced. The contact vibration of the probe and the disk at the high-speed scanning conditions was analyzed.

Report

(5 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • Research Products

    (57 results)

All Other

All Publications (57 results)

  • [Publications] K.Tanaka, T.Ohkubo, M.Oumi, Y.Mitsuoka, K.Nakajima, H.Hosaka, K.Itao: "Numerical Simulation on Read-out Characteristics of the Planar Aperture Mounted Head with a Minute Scatterer"Jpn. J. Appl. Phys.. 40-1,3B. 1542-1547 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Ohkubo, M.hashimoto, T.Hirota, K.Itao, T.Niwa, H.Maeda, Y.Mitsuoka, K.Nakajima: "Mechanical Characteristics of an Optical Flying Head Assembly with Visible Light-Wave Guide Flexure"Journal of information Storage and Processing Systems. 12. 323-330 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 酒匂, 宮原, 藤井, 渡辺, 保坂, ブロイレル, 板生: "自己検知駆動型プローブによるサブナノメートル制御"マイクロメカトロニクス. 45,1. 8-15 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Ohkubo, T.Hirota, K.Itao, T.Niwa, H.Maeda, Y.Shinohara.Y.Mitsuoia, K.Nakajima: "Readout SIgnal Evaluation of Optical Flying Head Slider with Visible Light-Wave Guide Flexure"Microsystem Technologies. (in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Ohkubo, N.Shou, K.Tanaka, T.Hirota, K.IUtao, Y.Shinohara, K.Kato, Y.Mitsuoka, K Nakajima: "Mechanical Characteristics of a Contact Optical Head Slider Operating on a Metal-Layered Medium"Microsystem Technologies. (in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K.Tanaka, T.Ohkubo, M.Oumi, Y.Mitsuoka, K.Nakajima, H.Hosaka, K.Itao: "Simulation of Simultaneous Tracking / Data Signal Detection Using Novel Aperture-Mounted Surface Recording"Jpn. J. Appl. Phys.. (in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 草本, 近江, 三嶋, 保坂, 板生: "光ディスク回転系の振動特性とマイクロ化の検討"マイクロメカトロニクス. 43,1. 57-66 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 曽我部, 保坂, 板生: "並列微小振動子の振動連成"マイクロメカトロニクス. 43,1. 67-76 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] C.Lee, T.Itoh, T.Suga: "Self-excited Piezoelectric PZT Microcatnilevers for Dynamic SFM -with Inherent Sensing and Actuating Capabilities"Sensors & Actuators. A72. 179-188 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] J.Chu, R.Maeda, T.Itoh, T.Suga: "Tip-Scanning Dynamic Force Microscope Using Piezoelectric Cantilever for Full Wafer Inspection"Jpn. J. Appl. Phys.. 38. 7155-7158 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] J.Chu, R.Maeda, T.Itoh, K.Kataoka, T.Suga: "Microfabricated Dynamic Scanning Force Microscope Using a Three Dime nsional Piezoelectric T-shape Actuator"Jpn. J. Appl. Phys.. 38. 7180-7184 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 片岡憲一, Chu Jiaru, 前田龍太郎, 伊藤寿浩, 須賀唯知: "走査型力顕微鏡のための三次元駆動圧電マイクロカンチレバー"精密工学会誌. 66. 965-969 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 板生清: "ウェアラプルへの挑戦"工業調査会. 264 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 板生清, 保坂寛, 片桐祥雅: "光マイクロメカトロニクス"共立出版. 197 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 板生清(監修): "ウェアラブル情報機器の実際"オプトロニクス社. 202 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K. Tanaka, T. Ohkubo, M. Oumi, Y. Mitsuoka, K. Nakajima, H. Hosaka, K. Itao: "Numerical Simulation on Read-out Characteristics of the Planar Aperture Mounted Head with a Minute Scatterer"Jpn. J. Appl. Phys.. 40-1, 3B. 1542-1547 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Ohkubo, M. hashimoto, T. Hirota, K. Itao, T. Niwa, H. Maeda, Y. Mitsuoka, K. Nakajima: "Mechanical Characteristics of an Optical Flying Head Assembly with Visible Light-Wave Guide Flexure"Journal of Information Storage and Processing Systems. 12. 323-330 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K. Sako, Y. Miyahara, T. Fujii, S. Watanabe, H. Hosaka, H. Bleuler, K. Itao: "Sub nano-meter control by self-sensing and self-acting probe"Micromechatronics. 45.1. 8-15 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Ohkubo, T. Hirota, K. Itao, T. Niwa, H. Maeda, Y. Shinohara. Y. Mitsuoka, and K. Nakajima: "Readout Signal Evaluation of Optical Flying Head Slider with Visible Light-Wave Guide Flexure"Microsystem Technologies. (in Press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Ohkubo, N. Shou, K. Tanaka, T. Hirota, K. Itao, Y. Shinohara, K. Kato, Y. Mitsuoka and K Nakajima: "Mechanical Characteristics of a Contact Optical Head Slider Operating on a Metal Layered Medium"Microsystem Technologies. (in Press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K. Tanaka. T. Ohkubo, M. Oumi, Y. Mitsuoka, K. Nakajima, H. Hosaka and K. Itao: "Simulation of Simultaneous Tracking / Data Signal Detection Using Novel Aperture-Mounted Surface Recording"Jpn. J. Appl. Phys.. (in Press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] J. Kusamoto, T. Ohmi, A. Mishima, H. Hosaka, K. Itao: "Study on Disk Vibration of Miniature Optical Storage"Micromechatronics. 43.1. 57-66 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Sogabe, H. Hosaka, K. Itao: "Coupled Vibration of Micro-cantilever Array"Micromechatronics. 43.1. 67-76 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] C. Lee, T. Itoh, T. Suga: "Self-excited Piezoelectric PZT Microcatnilevers for Dynamic SFM - with Inherent Sensing and Actuating Capabilities"Sensors & Actuators. A72. 179-188 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] J. Chu, R. Maeda, T. Itoh, T. Suga: "Tip-Scanning Dynamic Force Microscope Using Piezoelectric Cantilever for Full Wafer Inspection"Jpn. J. Appl. Phys.. 38. 7155-7158 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] J. Chu, R. Maeda, T. Itoh, K. Kataoka T. Suga: "Microfabricated Dynamic Scanning Force Microscope Using a Three Dimensional Piezoelectric T-shape Actuator"Jpn. J. Appl. Phys.. 38. 7180-7184 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K. Katagiri, J. Chu, R. Maeda, T. Itoh, T. Suga: "3-dimensional Piezodriven Microcantilever for Scanning Force Microscope"Journal of the Japan Society for Precision. 66. 965-969 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K. Itao: "Challenge to Wearables"Kougyou-Chousakai. 264 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K. Itao, H. Hosaka, Y. Katagiri: "Opto-micro-mechatronics"Kyouritu-Shuppan. 197 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K. Itao (Ed.): "Wearable Information Equipment, State of the Art"The Optronics Co., Ltd.. 202 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K. Tanaka, T. Ohkubo, M. Oumi, Y. Mitsuoka, K. Nakajima, H. Hosaka, K. Itao: "Numerical Simulation on Read-out Characteristics of the Planar Aperture Mounted Head with a Minute Scatterer"Jpn. J. Appl. Phys.. 40-1,3B. 1542-1547 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T. Ide, K. Tanaka, T. Ohkubo, H. Hosaka, K. Itao, M. Oumi, Y. Mitsuoka, K. Nakajima: "Numerical Comparison between a Planar and a Tapered Aperture Mounted Near-field Optical Heads"Technical Digest of the 18^<th> Sensor Symposium 2001. 177-180 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] K. Tanaka, T. Ide, T. Ohkubo, M. Oumi, Y. Mitsuoka, K. Nakajima, H. Hosaka, K. Itao: "Numerical Simulation on the Optical Characteristics of the Near-Field Aperture: Dependency on the Polarization State of the Incident Light"The 3^<rd> International Micromechanism Symposium (Sept. 10-11, Tokyo Institute of Technology). 75-78 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] K. Tanaka, T. Ohkubo, M. Oumi, Y. Mitsuoka, K. Nakajima, H. Hosaka, K. Itao: "Simulation of Simultaneous Tracking/Data Signal Detection Using Novel Aperture-Mounted Surface Recording Head"International Symposium on Optical Memory 2001, Taipei, Taiwan, Th-J-30. 46-51 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 蒋寧, 廣田輝直, 大久保俊文, 保坂寛, 板生清, 篠原陽子, 光岡靖之, 中島邦雄: "接触型光ヘッドスライダの摺動・跳躍特性"日本機械学会IIP2001情報・知能・精密機器部門講演会講演論文集. 01-8. 9-12 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Ohkubo,M.Hashimoto,T.Hirota,K.Itao,T.Niwa,H.Maeda,Y.Mitsuoka,K.Nakajima: "Mechanical Characteristics of an Optical Head Assembly with Visible Light-Wave Guide Flexure"J.Info.Storage Proc.Syst. 2. 1-8 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] K.Tanaka,T.Ohkubo,M.Oumi,Y.Mitsuoka,K.Nakajima,H.Hosaka,K.Itao: "Numerical Simulation on Read-out Characteristics of the Planar Aperture Mounted Head with a Minute Scatterer"International Symposium on Optical Memory (ISOM 2000) Technical Digest. 108-109 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Hirota,Y.Takahashi,T.Ohkubo,H.Hosaka,K.Itao,H.Osumi,Y.Mitsuoka K,Nakajima: "Simulative Experiment on Precise Tracking for High-Density Optical Storage Using a Scanning Near-field Optical Microscopy Tip"Proceedings of ICMA 2000. 327-332 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Ohkubo,K.Tanaka,T.Hirota,K.Itao: "A Novel Approach to Optical First-Surface Recording Based on Thin Film Gas-Lubricated Slider Bearing Technology"the 4 th Pacific Rim Conference on Lasers and Elecrto-Optics (CLEO/Pacific Rim 2001). 発表予定 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 片岡憲一,CHU Jiaru,前田龍太郎,伊藤寿浩,須賀唯知: "走査型力顕微鏡のための三次元駆動圧電マイクロカンチレバー"精密工学誌. 66,6. 965-969 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 井手達朗,田中健二,大久保俊文,保坂寛,板生清,大海学,光岡靖幸: "平面微小開口に発現する近接場を用いたサブミクロンビットパターンの再生特性"日本機械学会2000年度年次大会講演論文集. 2. 179-180 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 板生清: "ウェアラブルへの挑戦"工業調査会. 264 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 保坂,寛,板生,清: "ファイバ結合型外部共振器レーザによる光ディスクデータ検出"マイクロメカトロニクス. 43・3. 52-57 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 大隅,久,中島,邦雄,保坂,寛,板生,清: "SNOMを用いた光ナノメモリの再生出力評価"日本機械学会11P'99情報知能精密機器部門講演会講演論文集. 139-140 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 青柳,誠司,保坂,寛,板生,清: "タッピングを伴うプローブメモリ用カンチレバーの振動解析に関する研究"1999年度精密工学会春季大会学術講演会講演論文集. 308 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 保坂,寛,板生,清: "近接場光メモリヘッドにおける信号再生特性の近似解析"1999年度精密工学会秋季大会学術講演会講演論文集. 656 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 保坂,寛,板生,清: "プローブメモリヘッドにおける自励振動の解析"1999年度精密工学会秋季大会学術講演会講演論文集. 86 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 保坂,寛: "情報機器位置決め機構の力学"マイクロメカトロニクス. 44・1. 80-91 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] 板生,清,保坂,寛: "ウェアラブル情報機器の実際"オプトロニクス社. 202 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 板生,清,保坂,寛: "光マイクロメカトロニクス"共立出版. 192 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 片桐祥雅: "Dynamic Microforce Measurement by Distortion Deflection with a Coupled-Cavity Laser Displacement Sensor Stabilized in a Mechanical Necative-Feed back" Applied Optics. 37・31. 30-43 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 片桐祥雅: "複合共振器レーザの機械的負帰環制御による微小力計測" マイクロメカトロニクス. 42・2. 30-43 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 保坂 寛: "微小振動子に働く空気抵抗の解析" マイクロメカトロニクス. 42・3. 38-45 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 草本文治: "光ディスク回転系の振動特性とマイクロ化の検討" マイクロメカトロニクス. 43・1. 57-66 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 曽我部 高志: "並列微小振動子の振動連成" マイクロメカトロニクス. 43・1. 67-76 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 保坂 寛: "Theoretical and Experimental Study on Airflwo Damping of Vibrating Microcantilevers" Trans.ASME,J.Vibration & Acoustics. 121. 64-69 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 畑村洋太郎: "実際の情報技術技術" 日刊工業新聞社, 492 (1998)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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