OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 2, Iss. 4 — Apr. 1, 1963
  • pp: 393–400

Theory of Optical Information Storage in Solids

P. J. van Heerden  »View Author Affiliations


Applied Optics, Vol. 2, Issue 4, pp. 393-400 (1963)
http://dx.doi.org/10.1364/AO.2.000393


View Full Text Article

Enhanced HTML    Acrobat PDF (1013 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

In photography, information is stored in a medium which is essentially two-dimensional. Three-dimensional optical storage is possible in semitransparent colored materials, like alkali halides with color centers. With the use of coherent light sources, like lasers, large amounts of information can be stored in the volume, and retrieved with little interference. The storage of information is accomplished by the formation of interference patterns between each two plane parallel waves. This paper develops the theory of this form of storage. It turns out that the information storage capacity is as if every little cube with sides equal to the wavelength of light acts as an independent information storage cell, and the essential noise in recovering this information is only the statistical fluctuation in the number of color centers in such a cube. The storage capacity is therefore of the order of 1012–1013 bits per cm3. The main property of this way of information storage is the appearance of a “ghost image,” partly but not completely analogous to the one described previously. This property makes three-dimensional storage very suitable for associative memories. The theory lends support to Beurle’s proposed mechanism of information storage in the brain.

© 1963 Optical Society of America

History
Original Manuscript: July 23, 1962
Published: April 1, 1963

Citation
P. J. van Heerden, "Theory of Optical Information Storage in Solids," Appl. Opt. 2, 393-400 (1963)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-2-4-393


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. R. W. Pohl, Physik. Z. 39, 36 (1938); F. Seitz, Rev. Modern Phys. 26, 7 (1954). [CrossRef]
  2. Encyclopædia Britannica, Photography, Colour (U. of Chicago Press, Chicago, 1947), Vol. 17, p. 816.
  3. P. J. van Heerden, Appl. Opt. 2, 387 (1963). [CrossRef]
  4. R. L. Beurle, Phil. Trans. Roy. Soc. London, Ser. B, 240, 55 (1956). [CrossRef]
  5. D. Gabor, Nature 161, 777 (1948); Proc. Roy. Soc. A197, 454 (1949); Proc. Phys. Soc. B64, 449 (1951). [CrossRef] [PubMed]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited