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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 23, Iss. 24 — Dec. 15, 1984
  • pp: 4609–4612

Analyses of bit-oriented optical memories using photochromic media: errata

W. J. Tomlinson  »View Author Affiliations


Applied Optics, Vol. 23, Issue 24, pp. 4609-4612 (1984)
http://dx.doi.org/10.1364/AO.23.004609


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Abstract

Using a simple model we estimate the achievable characteristics of bit-oriented optical memories using photochromic recording media. For readout by sensing the absorption of the medium, which will degrade the stored information, the required write energy per bit is of the same order as or lower than that for common ablative or pit-forming write-once media, and the required sample concentration appears to be achievable. To be able to erase at the same rate as data are written, the erase source must have a power output as much as an order of magnitude greater than that of the write source, and this may present a serious problem. For readout by sensing the refractive-index change in the medium, to achieve a nondegradative readout, the required erase exposure and sample concentration both appear to be impractically large.

© 1984 Optical Society of America

History
Original Manuscript: April 27, 1984
Published: December 15, 1984

Citation
W. J. Tomlinson, "Analyses of bit-oriented optical memories using photochromic media: errata," Appl. Opt. 23, 4609-4612 (1984)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-23-24-4609


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