成果報告書詳細
管理番号20160000000302
タイトル*平成27年度中間年報 エネルギー・環境新技術先導プログラム データセンタの省電力化を実現する大容量・高速光アーカイブシステムの研究開発
公開日2016/5/17
報告書年度2015 - 2015
委託先名学校法人東京理科大学 特定非営利活動法人ナノフォトニクス工学推進機構
プロジェクト番号P14004
部署名イノベーション推進部
和文要約
英文要約Title: Advanced Research Program for Energy and Environmental Technologies. Research and Development of the ultra-large-capacity, high-speed holographic memory archive system suitable for power-saving of data centers (FY2014-FY2016) FY2015 Annual Report

1. High density multiplexed recording method
Development of multiplexed hologram recording method and the recording and reproducing experimental machine equipped with a signal processing technology and aberration-free lens developed in this project:
A high density multiplexed recording method using a 3-dimensional cross-shift recording was developed. By using this technology, stable recording and reproduction of the entire surface of the 5-inch disk is realized. The memory capacity of this technology corresponds to 2 terabytes in one disk. Operation of the input and output process of digital data in holographic memory system was also verified without problems.
2. Basic studies of the I/O devices using a dressed photon technology
Developments of ultra-fast optical modulator:
The fundamental data of the experimentally produced devices were obtained for the design of the devices mounted in an actual equipment. The potential design of the optical modulator (device material: silicon-carbide, pixel size: 10μm×10μm, modulation frequency: 100MHz) was obtained.
Developments of ultra-fast and sensitive optical sensor:
The fundamental data of the experimentally produced devices were obtained for the design of the devices mounted in an actual equipment. The potential design of the optical sensor (device material: silicon, pixel size: 10μm×10μm, operation frequency: 100GHz, quantum efficiency: 100%) was obtained.
3. Large capacity photopolymer media
Development of a high density medium due to the polymerization control:
Compared with the M/# of the current product, the value of the prototype sample developed in this project showed a large value of 28.5. It is 1.4 times of current product M/# with the same degree of shrinkage. The monomer which used in this high M/# recording material deserves to be called fourth generation monomer from the view point of the monomer development in holographic memory.
4. Evaluation technology of phase and amplitude multi-level recording
Development of evaluation method of multi-leveled holographic recording and reproduction:
Random phase mask for DC component reduction of the signal light, the diffractive optical element for position detection, and the phase plate of the phase multi-level verification were made by nanoimprint lithography. The precision accuracy of the sample depth was obtained by this lithography method. The basic characteristics of multi-level detection was studied by using these sample.
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