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Optical Methods of Information Storage

  • M. Hartmann
  • A. M. L. Spruijt
  • B. A. J. Jacobs
Conference paper

Abstract

The application of a focussed, scanning laser beam for data storage and retrieval is referred to as optical recording. The concept of this ‘bit- oriented’ optical storage has been under development since the early seventies. The Laser Vision video-disk system (1) as well as the more recently introduced digital audio-disks (2) offer areal information densities up to about 100 Mbit/cm2, one to two orders of magnitude higher than in magnetic recording media. Both are playback (read-only) systems, offering combined video and audio and high-quality audio, respectively. One major advantage of the optical disk is its contactless read-out. A laser is focussed into a small spot (full width half maximum 0.8 (µm) on the disk, thus reading the information. The distance between the objective lens and the information carrying layer is several millimeters; this allows for a transparent substrate of approximately 1 mm thickness to be situated between the storage layer and the reading head. The information layer is located inside a substrate sandwich. Small scratches or dust do not affect the reading quality, since the outer surface is out of focus.

Keywords

Full Width Half Maximum Compact Disk Optical Recording Optical Storage Laser Vision 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. (1).
    G. GOUWHUIS, J. BRAAT: Appl. Opt. and Opt. Engineering IX; R. SHANNON, J. LOYANT: eds. Academic Press 3., N.Y. (1983)Google Scholar
  2. (2).
    M. CARRASSO, J. PEEK, J. SINJOU: Philips Techn. Rev. 40, 151 (1982)Google Scholar
  3. (3).
    B. JACOBS: Appl. Optics 17, 2001 (1978)CrossRefGoogle Scholar
  4. (4).
    H. HAVERKORN, V. RIJSEWIJK, P. LEGIERSE, G. THOMAS: Philips Techn. Rev. 40, 297 (1982)Google Scholar
  5. (5).
    K. BULTHUIS, M. CARRASSO, J. HEEMSKERK, P. KIVITS, W. KLEUTERS, P. ZALM: IEEE Spectrum, August issue (1979)Google Scholar
  6. (6).
    P. KIVITS, R. de BONT, P. ZALM: Appl. Phys. 24, 273 (1981)CrossRefGoogle Scholar
  7. (7).
    A.V.D. BROEK, H. HAVERKORN, V. RIJSEWIJK, P. LEGIERSE, G. LIPPITS. G. THOMAS: J. Rad. Curing 11, 1 (1984)Google Scholar
  8. (8).
    K. COMPAAN, P. KRAMER: Philips Techn. Rev. 33, 178 (1973)Google Scholar
  9. (9).
    G. BOUWHUIS, J.J.M. BRAAT: Appl. Optics and Optical Engineering IX, 73 ()Google Scholar
  10. (10).
    B. HOEKSTRA: Phys. Technol. 14, 241 (1983)CrossRefGoogle Scholar
  11. (11).
    J.J.M. BRAAT, G. BOUWHUIS: Appl. Optics 13, 2013 (1978)CrossRefGoogle Scholar
  12. (12).
    G. BOUWHUIS, J.J.M. BRAAT: Appl. Optics 17, 1993 (1978)CrossRefGoogle Scholar
  13. (13).
    L. RALSTON: SPIE Proc. 420, 186 (1983)Google Scholar
  14. (14).
    P. KIVITS, R. de BOUT: Appl. Phys. 24, 307 (1981)CrossRefGoogle Scholar
  15. (15).
    J. WROBEL, A. MARCHANT, D. HOWE: Appl. Phys. Lett. 40, 928 (1983)CrossRefGoogle Scholar
  16. (16).
    D.J. GRAVENSTEIJN, C. STEENBERGEN, J. van der VEEN: SPIE Proc. 420, 327 (1983)Google Scholar
  17. (16).
    A. HUIJSER: SPIE Proc. 382, 270 (1983)Google Scholar
  18. (17).
    R. FREESE, R. WILLSON, L. WALD, W. ROBBINS, T. SMITH: SPIE Proc. 329, 174 (1982)Google Scholar
  19. (18).
    M. TAKENAGA, N. YAMADA, S. OHARA, K. NISHINCHI, M. NAGASHIMA, T. KASHIHARA, S. NAKAMURA, T. YAMASHITA: SPIE Proc. 420, 173 (1983)Google Scholar
  20. (19).
    C.M.J. van UIJEN: Opt. Mass Data Storage Conf., Los Angeles (1985)Google Scholar
  21. (20).
    T. DEGUCHI, H. KATAYAMA, A. TAKAHASHI, K. OUTA, S. KOBAYASHI, T. OKAMOTO: Appl. Opt. 23, 3972 (1984)CrossRefGoogle Scholar
  22. (21).
    P. TANAKA, Y. NAGAO, N. IMAMURA: IEEE Trans. Magn. 30, 1033 (1984)CrossRefGoogle Scholar
  23. (22).
    M. HARTMANN, J.J.M. BRAAT, B. JACOBS: IEEE Trans. Magn. 20, 1013 (1984)CrossRefGoogle Scholar
  24. (23).
    J. BIESTERBOS: Journal de Physique 40, C5-274 (1979)CrossRefGoogle Scholar
  25. (24).
    M. URNER-WILLE, P. HANSEN, K. WITTER: IEEE Trans. Mag. MAG-16, 1188 (1980)CrossRefGoogle Scholar
  26. (25).
    H. HEITMANN, M. HARTMANN, M. ROSENKRANZ, H.J. TOLLE: M.M.A. ’85 Conference, Grenoble, paper A3-I (1985), to be published in J. PhysiqueGoogle Scholar

Copyright information

© Springer-Verlag Berlin, Heidelberg 1986

Authors and Affiliations

  • M. Hartmann
    • 1
  • A. M. L. Spruijt
    • 2
  • B. A. J. Jacobs
    • 3
  1. 1.Philips GmbH Forschungslaboratorium HamburgHamburg 54Germany
  2. 2.Philips Optical Media Development SPG EindhovenThe Netherlands
  3. 3.Philips Research Laboratory EindhovenThe Netherlands

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