Multilayer Collinear Holographic Memory with Movable Random Phase Mask
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概要
- 論文の詳細を見る
We proposed a new multilayer collinear holographic memory (MCHM) with a movable random phase mask that can act as an interlayer crosstalk reducer. First, to clarify the feasibility of our proposed device, we showed that it has an extremely sharp shift selectivity along the thickness direction of medium of nearly 5.0 μm when the numerical aperture of the objective lens is 0.60. Next, we demonstrated that the utilization of the movable random phase mask can suppress interlayer crosstalk sufficiently, resulting in the improvement in the quality of reconstructed signals. Moreover, we revealed that the MCHM, in which the parallel use of a multilayered technique and collinear shift multiplexing is performed, brings out the medium potential sufficiently in terms of signal to noise ratio and medium dynamic range consumption. Finally, we verified that the MCHM can achieve a nearly 2 times larger data density at least compared with a conventional collinear holographic memory.
- 2011-09-25
著者
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Sato Kunihiro
Faculty Of Engineering Hokkai-gakuen University
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Okamoto Atsushi
Graduate School Of Engineering Hokkaido University
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Tomita Akihisa
Graduate School Of Information Science And Technology Hokkaido University
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Takabayashi Masanori
Graduate School of Information Science and Technology, Hokkaido University, Sapporo 060-0814, Japan
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Takabayashi Masanori
Graduate School of Information and Technology, Hokkaido University, Sapporo 060-0814, Japan
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Shibukawa Atsushi
Graduate School of Information Science and Technology, Hokkaido University, Sapporo 060-0814, Japan
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Tomita Akihisa
Graduate School of Information Science and Technology, Hokkaido University, Sapporo 060-0814, Japan
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Tomita Akihisa
Graduate School of Information and Technology, Hokkaido University, Sapporo 060-0814, Japan
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