2015 Fiscal Year Final Research Report
High density holographic data storage using spherical reference wave
| Project/Area Number |
25420343
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Tokyo University of Science |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | ホログラフィ / 記憶装置 / 高密度記録再生 / フォトポリマー / 球面参照波 |
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| Outline of Final Research Achievements |
In the hologram memory, we have developed a three-dimensional cross-shift multiplex recording system using a spherical reference light. By combining the method both writing technology for the shift multiplexing in the medium plane with a cross-shift angle 10 degree and the overwriting technology for the shift multiplxing by the medium tilt angle about 5, which is formed by the photopolymer material 5 inch disk medium, the information amount of data about 2TB can be recorded in this 5 inch disk. Symbol error rate and signal to noise ratio in the entire disc surface can be in the practical level. Recording speed of data have achieved 100Mb / s. For further large-capacity in the future, the amplitude multi-level recording and reproduction will be studied.
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| Free Research Field |
情報ストレージ
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