What question did this study set out to answer?

This analysis aims to evaluate the potential performance of bit-oriented optical memories utilizing photochromic media.

December 15, 1984Applied Optics

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

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Analyses estimate characteristics of optical memories using photochromic media, highlighting energy challenges.

This analysis aims to evaluate the potential performance of bit-oriented optical memories utilizing photochromic media.
Developed a simple model to estimate characteristics of optical memories.
Assessed write energy requirements and sample concentration for effective bit storage.
Evaluated readout methods based on absorption and refractive-index changes.
Write energy per bit is comparable or lower than traditional write-once media.
Erase power must exceed write power by an order of magnitude to maintain erasure rates, posing a challenge.
For nondegradative readout via refractive-index change, erase exposure and sample concentrations required are impractically large.

W. J. Tomlinson (1984) studied this question.

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