| Project/Area Number |
25600073
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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 |
Applied materials
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| Research Institution | The University of Tokyo |
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Principal Investigator |
Matsui Hiroaki 東京大学, 工学(系)研究科(研究院), 講師 (80397752)
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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 |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 機能性酸化物 / VO2 / 表面プラズモン / 相転移 / ナノ構造 / メモリー効果 / 二酸化バナジウム / ナノドット構造 / 赤外帯域 / モット相転移 / 温度制御 / 酸化物 / 強相関 / 中赤外 |
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| Outline of Final Research Achievements |
In this work, we carried out external control of surface plasmon resonance (SPRs) based on functional oxide (VO2) with a metal-insulator transition. In particular, we focused on SPR responses from the two-dimensional VO2 nanodot arrays fabricated using a top-down technique based on nanoimprint lithography. As a result, we demonstrated SPR properties of the VO2 nanodot arrays in the infrared range from the experimental and theoretical viewpoints, which were attributed to strong electron-electron interactions in the conduction band of VO2. Finally, we sufficiently showed the possibilities of external control of surface plasmons of the VO2 nanodot arrays from the temperature-dependent plasmonic responses.
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