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Science 25 August 1989:
Vol. 245. no. 4920, pp. 843 - 845
DOI: 10.1126/science.245.4920.843
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Articles

Three-Dimensional Optical Storage Memory

DIMITRI A. PARTHENOPOULOS 1 and PETER M. RENTZEPIS 1

1 Department of Chemistry, University of California Irvine, Irvine, CA 92717.

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.

Submitted on April 5, 1989
Accepted on June 28, 1989


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