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A novel three-dimensional (3-D) optical memory device is presented that allows fast random access of the information and extremely high bit densities. This device is based on two-photon writing, reading, and erasing of the information in a photochromic material embedded in a polymer matrix. Absorption and emission data show that two-photon writing and reading of information is feasible. The advantages and properties of such a 3-D optical memory are discussed.
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Dimitri A. Parthenopoulos
Philip Morris International (Switzerland)
P. M. Rentzepis
Texas A&M University
Science
University of California, Irvine
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Parthenopoulos et al. (Fri,) studied this question.
synapsesocial.com/papers/6a0f9a2c2badbc352afe6ab6 — DOI: https://doi.org/10.1126/science.245.4920.843
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