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Applied Optics

Applied Optics


  • Vol. 11, Iss. 6 — Jun. 1, 1972
  • pp: 1382–1388

Geometrical Aspects of Consistent Holographic Memory Design

P. Graf and M. Lang  »View Author Affiliations

Applied Optics, Vol. 11, Issue 6, pp. 1382-1388 (1972)

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Based on results of diffraction theory, it is shown that the proportions of storage plate and detector matrix, respectively, page-composer, of a fast holographic mass memory are strongly coupled. A high capacity fast data store needs a large detector array. Optimized geometry results if storage plate and detector matrix have the same size. A square detector matrix, able to read about 1010 bits in an optimum designed memory, should have a diagonal extension of about 1 m.

© 1972 Optical Society of America

Original Manuscript: November 23, 1971
Published: June 1, 1972

P. Graf and M. Lang, "Geometrical Aspects of Consistent Holographic Memory Design," Appl. Opt. 11, 1382-1388 (1972)

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  1. See, for instance, F. M. Smits, L. E. Gallaher, Bell Syst. Tech. J. 46, 1267 (1967); V. A. Vitols, IBM Tech. Disclosure Bull. 8, 1581 (1966); L. K. Anderson, Bell Lab. Rec. 46, 319 (1968); A. H. Eschenfelder, J. Appl. Phys. 41, 1372 (1971); J. A. Rajchman, J. Appl. Phys. 41, 1376 (1970). [CrossRef]
  2. See, for instance, U. Schmidt, in Optical Processing of InformationD. K. Pollock, C. J. Koester, J. T. Tippett, Eds. (Spartan Books, Baltimore, 1963), pp. 98–103; W. Kulcke, T. J. Harris, K. Kosanke, E. Max, IBM J. Res. Dev. 8, 64 (1964); W. Kulcke et al., Appl. Opt. 5, 1657 (1966); U. Schmidt, W. Thust, J. Opto Electron. 1, 21 (1969). [CrossRef] [PubMed]
  3. L. K. Anderson et al., Sixth Internat. Quantum Electronics Conference Kyoto, Japan, (7–10 Sept. 1970).
  4. J. T. LaMacchia, Laser Focus, 35 (Feb.1970).
  5. P. Graf, Proc. 1970 IEEE Computer Group Conference, Washington D.C., pp. 83–87.
  6. In practical applications this criterion can be improved in the sense of tolerating overlappings as long as one light spot does not activate two or more neighboring detectors.
  7. G. B. Airy, Trans. Camb. Philos. Soc. 5, 283 (1835); M. Born, E. Wolf, Principles of Optics (Pergamon, London, 1965); A. Sommerfeld, Vorlesungen über theoretische Physik, Band IV, Optik (Akad. Verlagsgesellschaft Geest und Portig K.G., Leipzig, 1964).

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