| Project/Area Number |
25610078
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Condensed matter physics I
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
Mitsui Tadashi 国立研究開発法人物質・材料研究機構, 表界面構造・物性ユニット, 主任研究員 (90343863)
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| Co-Investigator(Kenkyū-buntansha) |
TAKAMASU Tadashi 国立研究開発法人物質・材料研究機構, 表界面構造・物性ユニット, グループリーダー (60212015)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2015: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | グラフェン / ラマン散乱 / 強磁場 / 極低温 |
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| Outline of Final Research Achievements |
We developed a high-efficiency optical measurement device for operation within the small bore of a high-power magnet at low temperature. For the high-efficiency measurement of light emitted from this small region, we designed and fabricated a compact confocal optics with lens focusing and tilting systems, and used a piezodriven translation stage that allows micron-scale focus control of the sample position. We designed a measurement device that uses 10 m-long optical fibers in order to avoid the influence of mechanical vibration and magnetic field leakage of high-power magnets, and we also developed a technique for minimizing the fluorescence signal of optical fibers. By using this device, we observed Raman scattering spectra of monolayer graphene on quartz glass with a high signal-to-noise ratio.
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