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Development of a pyramidal write-read head array for high-density optical storage by optical near field

Research Project

Project/Area Number 12555011
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Applied optics/Quantum optical engineering
Research InstitutionTokyo Institute of Technology

Principal Investigator

OHTSU Motoichi  Tokyo Institute of Technology, Interdisciplinary Graduate School of Science and Engineering, Professor, 大学院・総合理工学研究科, 教授 (70114858)

Co-Investigator(Kenkyū-buntansha) TAKAHASHI Jun-ichi  Ricoh Corporation, R&D Laboratory, Chief Engineer, 研究開発部中央研究所材料デバイス研究センター, 主席係長研究員
KOUROGI Motonobu  Tokyo Institute of Technology, Interdisciplinary Graduate School of Science and Engineering, Research Associate, 大学院・総合理工学研究科, 助手 (10251662)
Project Period (FY) 2000 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥13,400,000 (Direct Cost: ¥13,400,000)
Fiscal Year 2001: ¥4,000,000 (Direct Cost: ¥4,000,000)
Fiscal Year 2000: ¥9,400,000 (Direct Cost: ¥9,400,000)
KeywordsOptical near field / Optical memory / Tracking / Deflection / Solid immersion lens / Storage density / 光記録 / スライダー / 相変化 / ビットレート
Research Abstract

(1) Numerical analyzes were carried out to generate a high-intensity and small-spot optical near field by using a mode interference effect. As a result, a wedge-type head was found to be superior to a pyramidal-type. Based on it, a wedge-type head was fabricated by anisotropic etching of silicon. The head of 200 nm-width and 100 micron-length was fabricated.
(2) Beam deflection technique was proposed for tracking experiment. The optical near field from the head was deflected by a compact electro-optical modulator to get the deflection efficiency of 2 nm/V. It met the requirement for the tracking servo-control.
(3) Using a solid immersion lens was proposed for more increase in the optical near field intensity on the head. This lens was fabricated by photo-lithography and reactive etching to realize the 1micron-height and 15 micron-diameter. Increase in the optical near field intensity was confirmed.
(4) By assembling the components obtained above, head array and pads were fabricated. Write-read experiments were carried out by using a spin-stand for disk rotation. As a result, it was found that careful selection of the phase change direction of the storage media, and readout by reflection-mode were promising to realize the 1 Tb/in^2 storage density and 40 dB CNR for readout.

Report

(3 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report

Research Products

(25 results)

All Other

All Publications (25 results)

  • [Publications] H.N.Aiyer, T.Kawazoe, J.Lim, Y.Echigo, M.Ohtsu: "Mercury treatment of optical near-field fibre probes for smoother tips with reduced light leakage"Nanotechnology. 17-1. 368-371 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H.Fukuda, T.Saiki, M.Ohtsti: "Diagnostics of Semiconductor Devices beyond the Diffraction Limit of Light"Sensors and Materials. 13-8. 445-460 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H.Fukuda, M.Ohtsti: "Near-Field Photocurrent Measurements of Si p-n Junctin Under the Reverse-bias Condition"Jpn. J. Appi. Phys.. 40-3B. L286-L288 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M.Ohtsu, K.Kobayashi, H.Ito, G.H.Lee: "Nanofabrication and Atom Manipulation by Optical Near-Field and Relevant Quantum OpticalTheory"Proc. IEEE. 88-9. 1499-1518 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Yatsui, M.Kourogi, K.Tsutsui, J.Takahashi, M.Ohtsu: "High density/speed optical near field recording/reading with a pyramidal silicon probe on a contact slider"Optics Lett.. 25-17. 1279-1281 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 大津元一: "光の小さな粒"裳華房. 139 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H.N. Aiyer, T. Kawazoe, J. Lim, Y. Echigo, and M. Ohtsu: "Mercury treatment of optical near-field fibre probes for smoother tips with reduced light leakage"Nanotechnology. 17-1. 368-371 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H. Fukuda, T. Saiki, and M. Ohtsu: "Diagnostics of Semiconductor Devices beyond the Diffraction Limit of Light H"Sensors and Materials. 13-8. 445-460 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Fukuda and M. Ohtsu: "Near-Field Photocurrent Measurements of Si p-n Junctin Under the Reverse-bias Condition"Jpn. J. Appl. Phys.. 40-3B. L286-L288 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M. Ohtsu, K. Kobayashi, H. Ito, and G.H. Lee: "Nanofabrication and Atom Manipulation by Optical Near Field and Relevant Quantum Optical Theory"Proc. IEEE. 88-9. 1499-1518 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Yatsui, M. Kourogi, K. Tsutsui, J. Takahashi, and M. Ohtsu: "High density/speed optical near field recording/reading with a pyramidal silicon probe on a contact slider"Optics Lett.. 25-17. 1279-1281 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H.N.Aiyer, T.Kawazoe, J.Lim, Y.Echigo, M.Ohtsu: "Mercury treatment of optical near-field fibre probes for smoother tips with reduced light leakage"Nanotechnology. 17・1. 368-371 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] H.Fukuda, T.Saiki, M.Ohtsu: "Diagnostics of Semiconductor Devices beyond the Diffraction Limit of Light"Sensors and Materials. 13・8. 445-460 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] H.Fukuda, M.Ohtsu: "Near-Field Photocurrent Measurements of Si p-n Junctin Under the Reverse-bias Condition"Jpn. J. Appl. Phys.. 40・3B. L286-L288 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] M.Ohtsu, K.Kobayashi, H.Ito, G.H.Lee: "Nanofabrication and Atom Manipulation by Optical Near-Field and Relevant Quantum Optical Theory"Proc. IEEE. 88・9. 1499-1518 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Yatsui, M.Kourogi, K.Tsutsui, J.Takahashi, M.Ohtsu: "High density/speed optical near field recording/reading with a pyramidal silicon probe on a contact slider"Optics. Lett.. 25・17. 1279-1281 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] 大津元一: "光の小さな粒"裳華房. 139 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] K.Kobayashi,S.Sangu,H.Ito and M.Ohtsu: "Near-field otical potential for a neutral atom"Phys.Rev.A. 63・1. 013806-1-013806-9 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] K.Kurihara,M.Ohtsu,T.Yoshida,T.Abe,H.Hisamoto and K.Suzuki: "Micrometer-sized lithium ion-selective microoptodes based on a tailed neutral ionophore and a fluorescent anionic dye"Analytica Chemica. 426・1. 11-18 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 大津元一: "ナノフォトニクスとその展望"電子情報通信学会誌. 84・1. 26-32 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Y.Yamamoto,G.H.Lee,K.Matsuda,T.Shimizu,M.Kourogi and M.Ohtsu: "Fabrication of an Ultraviolet Light-Emitting Functional Probe of Sub-Micron Size by Photochemical Vapor Deposition"Opt.Rev.. 7・6. 486-488 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] M.Ohtsu,K.Kobayashi,H.Ito and G.H.Lee: "Nanofabrication and Atom Manipulation by Optical Near-Field and Relevant Quantum Optical Theory"Proc.IEEE. 88・9. 1499-1518 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Yatsui,M.Kourogi,K.Tsutsui,M.Ohtsu and J.Takahashi: "High-density-speed optical near-field recording-reading with a pyramidal silicon probe on a contact slider"Opt.Lett.. 25・17. 1279-1281 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 大津元一,河田聡: "近接場ナノフォトニクス入門"オプトロニクス社. 133 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] X.Zhu and M.Ohtsu: "Near-Field Optics : Prinicples and Applications"World Scientific. 273 (2000)

    • Related Report
      2000 Annual Research Report

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Published: 2000-03-31   Modified: 2016-04-21  

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