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Proceedings Paper

Three-dimensional optical memory systems based on photochromic materials: polarization control of two-color data writing and the possibility of nondestructive data reading
Author(s): D. A. Akimov; Andrei B. Fedotov; Nikolai I. Koroteev; S. A. Magnitskii; A. N. Naumov; Dmitri A. Sidorov-Biryukov; N. T. Sokoluk; Alexei M. Zheltikov
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Paper Abstract

The possibilities of optimizing data writing and reading in devices of 3D optical memory using photochromic materials are discussed. We quantitatively analyze linear and nonlinear optical properties of induline spiropyran molecules, which allows us to estimate the efficiency of using such materials for implementing 3D optical-memory devices. It is demonstrated that, with an appropriate choice of polarization vectors of laser beams, one can considerably improve the efficiency of two-photon writing in photochromic materials. The problem of reading the data stored in a photochromic material is analyzed. The possibilities of data reading methods with the use of fluorescence and four-photon techniques are compared.

Paper Details

Date Published: 1 April 1998
PDF: 12 pages
Proc. SPIE 3402, Optical Information Science and Technology (OIST97): Optical Memory and Neural Networks, (1 April 1998); doi: 10.1117/12.304933
Show Author Affiliations
D. A. Akimov, Moscow State Univ. (Russia)
Andrei B. Fedotov, Moscow State Univ. (Russia)
Nikolai I. Koroteev, Moscow State Univ. (United States)
S. A. Magnitskii, Moscow State Univ. (Russia)
A. N. Naumov, Moscow State Univ. (Russia)
Dmitri A. Sidorov-Biryukov, Moscow State Univ. (Russia)
N. T. Sokoluk, Moscow State Univ. (Russia)
Alexei M. Zheltikov, Moscow State Univ. (Russia)

Published in SPIE Proceedings Vol. 3402:
Optical Information Science and Technology (OIST97): Optical Memory and Neural Networks
Andrei L. Mikaelian, Editor(s)

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