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11 May 2011 Simulation analysis of co-axis dual-reference-beam holographic data recording
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A major barrier to the practical use of holographic memories is deterioration of reconstructed signals due to shrinkage of the medium. It is reported that a photopolymer medium shrinks mainly in the thickness direction during recording or as a result of variations in ambient temperature, and the optimal reconstruction angle shifts and deteriorates. To avoid the influence of medium shrinkage, we propose co-axial, dual-reference-beam recording and reconstruction. The recording and reconstruction characteristics of this method were examined through simulation and experiments, and the results confirmed that in holographic multiplex recording, the reference-beam angle is not affected by medium shrinkage, and stable recording and reconstruction are achieved.
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Takefumi Yamada, Kiyoto Katakura, Akihito Nakajima, Shuhei Yoshida, and Manabu Yamamoto "Simulation analysis of co-axis dual-reference-beam holographic data recording", Proc. SPIE 8074, Holography: Advances and Modern Trends II, 807413 (11 May 2011);

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